Title 24 Energy, Author at Title 24 Service

Title 24 Compliance vs Prescriptive Method

Posted on February 24, 2026 by Title 24 Energy

Title 24 Compliance vs Prescriptive Method — Understanding Your Energy Code Pathway in California

When comparing Title 24 compliance vs prescriptive method, many homeowners, architects, contractors, and developers are trying to determine which pathway applies to their project — and whether they have options. The confusion usually comes from the assumption that “Title 24” and “prescriptive compliance” are two separate things. They are not. The prescriptive method is one way to comply with Title 24.

Title 24 establishes California’s Building Energy Efficiency Standards. Within those standards, there are multiple compliance pathways. The two primary approaches are the prescriptive method and the performance method. Understanding the difference between Title 24 compliance vs prescriptive method can help you choose the right strategy, avoid unnecessary revisions, and keep your permit moving forward.

If you need help determining which pathway is best for your project, call (626) 365-1518.

What Is Title 24 Compliance?

Title 24 compliance means demonstrating that your building meets California’s energy efficiency requirements. These standards apply to:

New residential construction
Commercial buildings
Additions and expansions
Remodels and alterations
Tenant improvements

Title 24 addresses components such as:

Insulation R-values
Window U-factor and SHGC ratings
HVAC system efficiency
Duct leakage thresholds
Lighting power density (commercial)
Water heating performance
Mechanical ventilation standards
Solar photovoltaic requirements for many new homes

To demonstrate compliance, projects must follow either the prescriptive or performance pathway.

What Is the Prescriptive Method?

When discussing Title 24 compliance vs prescriptive method, the prescriptive method refers to a component-by-component approach. Instead of modeling the whole building, each element must meet or exceed specific minimum requirements listed in the code.

Under the prescriptive method:

Walls must meet minimum insulation values.
Windows must meet specific U-factor and SHGC limits.
HVAC systems must meet minimum efficiency ratings.
Duct systems must comply with leakage standards.
Lighting must meet defined wattage limits (for commercial projects).

If all minimum requirements are met, compliance can be documented without full building performance modeling.

Title 24 Compliance vs Prescriptive Method — The Key Differences

To clearly understand Title 24 compliance vs prescriptive method, consider the following distinctions:

1. Scope of Flexibility

Prescriptive: Little to no trade-offs allowed. Every component must meet specific minimums.
Performance: Trade-offs between components may be allowed through modeling.

2. Documentation Requirements

Prescriptive: Compliance forms based on meeting minimum component values.
Performance: Requires approved energy modeling software to compare proposed design to a baseline building.

3. Design Flexibility

Prescriptive: Best for straightforward, simple designs.
Performance: Better suited for custom homes, complex glazing layouts, or commercial projects.

4. Complexity

Prescriptive: Generally simpler for small remodels or additions.
Performance: More technical but allows optimization.

When Is the Prescriptive Method a Good Fit?

The prescriptive pathway often works well when:

The project is a small addition.
The building design is straightforward.
Window area is within code limits.
Standard HVAC equipment is being used.
No unusual design trade-offs are needed.

In these cases, comparing Title 24 compliance vs prescriptive method may lead to choosing prescriptive compliance for simplicity.

When Performance Compliance Is Better

The performance method is often preferred when:

The design includes large glazing areas.
The building orientation affects solar heat gain.
Custom architectural features exceed prescriptive limits.
Mechanical systems are more complex.
The project is multi-family or commercial.

While performance compliance requires energy modeling, it can allow design flexibility not available under prescriptive rules.

Common Misconceptions

Understanding Title 24 compliance vs prescriptive method helps prevent these common mistakes:

Believing prescriptive compliance avoids inspections (it does not).
Assuming prescriptive is always easier (sometimes performance modeling simplifies complex projects).
Thinking modeling is optional for all projects (many larger projects require performance compliance).
Ignoring trade-offs when design exceeds glazing limits.

Both pathways are valid — the key is selecting the appropriate one early.

Plan Check Considerations

When submitting for permit:

Prescriptive compliance must clearly show all component minimums are met.
Performance compliance must align modeled inputs with architectural plans.
Any mismatch between plans and documentation can trigger correction notices.

Cities review both pathways carefully. Proper coordination reduces delays.

How to Choose the Right Pathway

When evaluating Title 24 compliance vs prescriptive method, consider:

Total conditioned floor area.
Window-to-wall ratio.
Mechanical system complexity.
Budget considerations.
Timeline constraints.

Early consultation can prevent costly design revisions later.

If you’re unsure which pathway fits your project, call (626) 365-1518, upload your plans through our contact page, or email info@title24energy.com with “Prescriptive vs Performance” in the subject line.

We’re Ready To Take Your Call

Understanding Title 24 compliance vs prescriptive method ensures your project meets California’s energy standards without unnecessary revisions. Both pathways fall under Title 24 — the difference lies in flexibility and documentation method.

Call (626) 365-1518 today to ensure your compliance strategy aligns with your design and permit timeline.

Frequently Asked Questions About Title 24 Compliance vs Prescriptive Method

1. Is prescriptive compliance part of Title 24?

Yes, it is one approved compliance pathway.

2. Does prescriptive compliance require energy modeling?

No, it focuses on meeting minimum component standards.

3. Is performance compliance more flexible?

Yes, it allows trade-offs through modeling.

4. Are inspections required under both methods?

Yes, inspections and possibly HERS testing may apply.

5. Which method is better for custom homes?

Performance compliance is often better for custom designs.

6. Can additions use prescriptive compliance?

Yes, many small additions qualify.

7. Does prescriptive compliance limit glazing area?

Yes, it enforces maximum glazing limits.

8. Can performance compliance reduce insulation requirements?

Trade-offs may be possible depending on modeling results.

9. Are commercial projects typically modeled?

Yes, many commercial projects use performance compliance.

10. Does prescriptive compliance avoid plan check review?

No, documentation is still reviewed.

11. Is prescriptive easier?

It can be for simple projects.

12. Does modeling require approved software?

Yes, CEC-approved tools must be used.

13. Can mismatches cause rejection?

Yes, documentation must match plans exactly.

14. Are HVAC efficiencies fixed under prescriptive?

Minimum efficiencies must be met.

15. Can designers switch pathways mid-project?

Sometimes, but documentation must be updated.

16. Is performance compliance required for multi-family?

Often yes, especially for larger developments.

17. Does prescriptive compliance apply statewide?

Yes, Title 24 applies throughout California.

18. Can performance compliance improve cost efficiency?

Sometimes, through strategic trade-offs.

19. Does solar impact compliance pathway choice?

Solar may be included in performance modeling calculations.

20. How do I choose the correct pathway?

Call (626) 365-1518 or upload your plans through our contact page for guidance.

Title 24 vs Energy Modeling

Posted on February 24, 2026 by Title 24 Energy

Title 24 vs Energy Modeling — Are They the Same Thing in California?

If you’re comparing Title 24 vs energy modeling, you’re probably trying to understand whether they are interchangeable terms. They are not. While they are closely related, they serve different purposes in California’s building compliance process.

Title 24 refers to the California Building Energy Efficiency Standards — the legal requirements your project must meet. Energy modeling is one method used to demonstrate compliance with those standards. In other words, energy modeling is a tool. Title 24 is the rulebook.

Understanding the difference between Title 24 vs energy modeling can help you avoid confusion during design, plan check, and inspection. If you need help determining which compliance pathway applies to your project, call (626) 365-1518.

What Is Title 24?

Title 24, Part 6 of the California Code of Regulations establishes statewide building energy efficiency requirements. These standards regulate how buildings must perform in terms of energy use.

Title 24 addresses:

Insulation levels in walls, roofs, and floors
Window U-factor and SHGC performance
HVAC system efficiency standards
Duct leakage requirements
Water heating performance
Lighting power density and controls (commercial projects)
Solar photovoltaic requirements for certain new homes

Title 24 is mandatory for most permitted construction projects in California.

What Is Energy Modeling?

Energy modeling is a technical process that simulates how a building will perform under certain energy-use assumptions. In the context of Title 24 vs energy modeling, modeling is typically used when a project follows the “performance” compliance pathway.

Energy modeling:

Uses CEC-approved software tools
Compares the proposed design to a baseline standard
Evaluates insulation, windows, HVAC systems, lighting, and orientation
Generates compliance documentation for permit submission

Energy modeling does not replace Title 24 — it demonstrates compliance with it.

Title 24 vs Energy Modeling — Key Differences

When comparing Title 24 vs energy modeling, consider the following:

1. Legal Requirement vs Method

Title 24: The legal energy code requirements.
Energy modeling: A method used to prove compliance.

2. Mandatory vs Optional (Depending on Scope)

Title 24: Required for most permitted projects.
Energy modeling: Required only when using the performance pathway. Some projects may use prescriptive compliance instead.

3. Documentation Output

Title 24: Requires certificates of compliance and related forms.
Energy modeling: Produces performance reports and documentation through approved software.

4. Scope of Application

Title 24: Applies to residential, commercial, additions, remodels, and tenant improvements.
Energy modeling: Often used for new construction, larger additions, custom homes, and complex commercial buildings.

Prescriptive vs Performance Compliance

To fully understand Title 24 vs energy modeling, you need to understand compliance pathways.

Prescriptive Pathway:

Meets minimum component standards directly.
No whole-building modeling required.
Often used for smaller projects or simple scopes.

Performance Pathway:

Uses energy modeling to compare proposed design against a baseline.
Allows design flexibility.
Common for custom homes and commercial projects.

Energy modeling is part of the performance pathway, not a separate code requirement.

When Is Energy Modeling Required?

In the Title 24 vs energy modeling discussion, modeling is typically required when:

The design exceeds prescriptive glazing limits.
The project involves complex mechanical systems.
The building is large or multi-family.
The designer wants flexibility in insulation or HVAC trade-offs.
The project is commercial with lighting and system interactions.

Smaller remodels or straightforward additions may qualify under prescriptive compliance without modeling.

Common Misunderstandings

Confusion between Title 24 vs energy modeling often leads to incorrect assumptions:

“I don’t need Title 24 because I’m not modeling.” (Incorrect — Title 24 still applies.)
“Energy modeling replaces inspections.” (Incorrect — inspections and possibly HERS testing still apply.)
“If my building meets prescriptive values, modeling isn’t needed.” (Sometimes true — but depends on scope.)

Understanding the distinction prevents costly rework.

How to Decide What Your Project Needs

To determine how Title 24 vs energy modeling applies to your project:

Confirm your project type (new construction, addition, remodel, TI).
Review glazing area and envelope complexity.
Confirm HVAC and mechanical system scope.
Identify whether prescriptive standards can be met directly.
Consult with a compliance professional early in design.

If you’re unsure which pathway is appropriate, call (626) 365-1518, upload your plans through our contact page, or email info@title24energy.com with “Title 24 vs Energy Modeling” in the subject line.

We’re Ready To Take Your Call

Understanding Title 24 vs energy modeling helps you choose the right compliance pathway and avoid permit delays. Title 24 establishes the energy requirements. Energy modeling is one approved method to demonstrate compliance.

Call (626) 365-1518 today to ensure your project follows the correct pathway from design through approval.

Frequently Asked Questions About Title 24 vs Energy Modeling

1. Is Title 24 the same as energy modeling?

No. Title 24 is the energy code; energy modeling is a compliance method.

2. Is energy modeling always required?

No, some projects qualify under prescriptive compliance.

3. Does Title 24 apply to remodels?

Yes, many remodels must comply with energy standards.

4. Can I skip Title 24 if I meet prescriptive values?

No, prescriptive compliance is still part of Title 24.

5. Is modeling required for commercial buildings?

Often yes, especially for larger or complex projects.

6. Does modeling affect HVAC selection?

Yes, HVAC efficiency impacts performance results.

7. Are solar panels included in modeling?

For new homes, solar PV may be incorporated into performance calculations.

8. Can modeling reduce insulation requirements?

Sometimes trade-offs are allowed under performance compliance.

9. Does modeling replace inspections?

No, inspections and possibly HERS testing still apply.

10. Can additions require modeling?

Yes, depending on scope and glazing area.

11. What software is used for modeling?

CEC-approved software tools are required for performance compliance.

12. Does modeling affect window selection?

Yes, glazing performance significantly impacts compliance.

13. Are tenant improvements modeled?

Many commercial TIs require modeling.

14. Can a small remodel avoid modeling?

Often yes, if prescriptive standards are met.

15. Does building orientation affect modeling?

Yes, orientation influences energy performance.

16. Can modeling prevent plan-check rejection?

When coordinated properly, it reduces correction risk.

17. Is modeling more flexible than prescriptive?

Yes, it allows trade-offs between components.

18. Does multi-family construction require modeling?

Often yes, especially for larger developments.

19. Can documentation errors cause rejection?

Yes, mismatches between plans and reports can delay approval.

20. How do I know which pathway applies?

Call (626) 365-1518 or upload your plans through our contact page for review.

Do I Need Both Title 24 and CalGreen in California?

Posted on February 24, 2026 by Title 24 Energy

Do I Need Both Title 24 and CalGreen? A Clear Guide for California Permits

If you’re asking “Do I need both Title 24 and CalGreen?”, you’re not alone. This is one of the most common questions homeowners, contractors, architects, and developers ask when preparing a permit application in California. The short answer in most cases is: yes. But understanding why — and how each applies to your specific project — is critical to avoiding delays at plan check and inspection.

Title 24 and CalGreen are both part of California’s building regulations. However, they regulate different aspects of construction. Title 24 (Part 6) focuses on energy efficiency. CalGreen (Part 11) focuses on broader sustainability measures like water conservation, indoor air quality, and environmental responsibility.

So when you ask, “Do I need both Title 24 and CalGreen?”, what you’re really asking is whether your project must comply with both energy efficiency standards and green building requirements. In most new construction and many remodel or addition projects, the answer is yes.

If you need help determining how both apply to your permit submission, call (626) 365-1518.

What Is Title 24?

Title 24, Part 6 refers to California’s Building Energy Efficiency Standards. It regulates how energy-efficient a building must be before it can receive permit approval.

Title 24 typically covers:

Wall, roof, and floor insulation levels
Window U-factor and SHGC values
HVAC system efficiency requirements
Duct leakage performance
Water heating system efficiency
Mechanical ventilation requirements
Lighting efficiency and controls (especially commercial)
Solar photovoltaic (PV) requirements for many new homes

Title 24 compliance is demonstrated through energy documentation generated using approved methods and software when required.

What Is CalGreen?

CalGreen is the California Green Building Standards Code (Title 24, Part 11). It focuses on sustainability and environmental performance beyond just energy use.

CalGreen typically regulates:

Water-conserving plumbing fixtures
Indoor air quality measures
Construction waste diversion requirements
Recycling and material conservation
Electric vehicle (EV) charging infrastructure
Mandatory and voluntary green building measures

While Title 24 addresses energy consumption, CalGreen addresses environmental impact more broadly.

Do I Need Both Title 24 and CalGreen for New Construction?

If you’re building a new home, ADU, duplex, multi-family project, or commercial building, the answer to “Do I need both Title 24 and CalGreen?” is almost always yes.

For example:

A new single-family home must meet Title 24 energy modeling requirements and include CalGreen water efficiency measures.
A commercial office building must comply with Title 24 lighting and mechanical standards while also meeting CalGreen waste management and EV requirements.
A multi-family development must address both energy performance and sustainability measures.

Both codes are reviewed at plan check and verified during inspections.

Do I Need Both for Additions or Remodels?

For additions and remodels, the answer depends on scope.

When asking, “Do I need both Title 24 and CalGreen?”, consider:

If you are increasing conditioned floor area, Title 24 compliance is usually required.
If you are altering plumbing fixtures, CalGreen water efficiency requirements may apply.
If you are replacing HVAC equipment, Title 24 may require documentation and possibly HERS verification.
If you are performing major renovations, CalGreen indoor air quality measures may apply.

Even smaller projects can trigger portions of both codes.

How Title 24 and CalGreen Are Reviewed at Plan Check

Understanding “Do I need both Title 24 and CalGreen?” also requires understanding how cities review permits.

During plan check:

Title 24 compliance documentation is reviewed for accuracy and alignment with plans.
CalGreen measures are reviewed through plan notes, checklists, and specifications.

If either portion is missing or incomplete, you may receive correction comments.

Common Confusion Between the Two

Many people asking “Do I need both Title 24 and CalGreen?” are confused by overlapping topics.

Here are clarifications:

Solar PV: Primarily a Title 24 energy requirement.
Low-flow fixtures: CalGreen water conservation requirement.
Lighting power density: Title 24 energy requirement.
Construction waste management plan: CalGreen requirement.
EV charging infrastructure: CalGreen requirement.

Both must be addressed properly in the permit set.

What Happens If I Only Address One?

If you only address Title 24 but ignore CalGreen, or vice versa, your permit can be delayed.

Plan check reviewers typically:

Issue correction notices
Require revised documentation
Delay approval until both are satisfied

Failing to coordinate both requirements early often results in avoidable revisions.

How to Make Sure You’re Covered

To confidently answer “Do I need both Title 24 and CalGreen?” for your project:

Confirm project scope (new construction, addition, TI, remodel).
Coordinate energy modeling early in design.
Include CalGreen notes and specifications in the architectural set.
Verify plumbing fixture flow rates meet CalGreen requirements.
Confirm EV infrastructure requirements if applicable.
Ensure energy documentation matches final plan revisions.

If you’re unsure which measures apply to your project, call (626) 365-1518, upload your plans through our contact page, or email info@title24energy.com with “Title 24 and CalGreen” in the subject line.

We’re Ready To Take Your Call

When asking “Do I need both Title 24 and CalGreen?”, the safest answer for most California projects is yes — especially for new construction and larger permitted work. Title 24 addresses energy performance, while CalGreen addresses sustainability and environmental measures. Both are enforced during plan review and inspection.

Call (626) 365-1518 today to ensure your project complies with both codes before submission.

Frequently Asked Questions About Do I Need Both Title 24 and CalGreen

1. Do I need both Title 24 and CalGreen for a new home?

Yes, most new homes must comply with both energy and green building standards.

2. Do additions require both?

Often yes, depending on scope and regulated systems affected.

3. Is Title 24 only about energy?

Yes, it primarily addresses energy efficiency.

4. Does CalGreen cover energy modeling?

No, CalGreen focuses on sustainability measures like water conservation.

5. Are both reviewed at plan check?

Yes, both are reviewed before permit approval.

6. Can I pass Title 24 but fail CalGreen?

Yes, if sustainability measures are missing.

7. Do tenant improvements require both?

Often yes, especially for commercial projects.

8. Are EV charging requirements part of Title 24?

Typically they fall under CalGreen.

9. Do remodels require both?

Some remodels trigger portions of both codes.

10. Is solar PV part of CalGreen?

Solar PV is generally part of Title 24 energy requirements.

11. Are plumbing fixture flow rates regulated?

Yes, under CalGreen water efficiency standards.

12. Does CalGreen apply statewide?

Yes, it is a statewide code.

13. Can cities add stricter requirements?

Some jurisdictions may adopt additional local amendments.

14. Does commercial construction require both?

Yes, commercial projects typically must comply with both codes.

15. Is energy modeling required for CalGreen?

No, CalGreen generally does not require modeling.

16. Can misunderstanding cause permit delays?

Yes, incomplete compliance can trigger correction notices.

17. Do ADUs require both?

Yes, most ADUs must meet both standards.

18. Is waste management required?

Yes, CalGreen includes waste diversion requirements.

19. Can one consultant coordinate both?

Yes, experienced professionals can coordinate both codes.

20. How do I confirm compliance?

Call (626) 365-1518 or upload your plans through our contact page for guidance.

Title 24 vs HERS Testing

Posted on February 24, 2026 by Title 24 Energy

Title 24 vs HERS Testing — What’s the Difference and Why Both Matter in California

If you’re comparing Title 24 vs HERS testing, you’re likely trying to understand why your project needs both paperwork and field verification. Many homeowners, contractors, architects, and developers assume that once a Title 24 energy report is approved at plan check, the job is done. In reality, energy compliance in California often involves two connected—but very different—components: documentation and verification.

Understanding Title 24 vs HERS testing is essential for avoiding failed inspections, rework, and occupancy delays. Title 24 establishes the energy standards and modeling requirements. HERS testing verifies in the field that specific installed systems meet those modeled and required standards.

If you want help coordinating both documentation and verification requirements, call (626) 365-1518 to get started.

What Is Title 24?

When people say “Title 24,” they usually mean Title 24, Part 6 — California’s Building Energy Efficiency Standards. These regulations govern how energy-efficient a building must be in order to receive a permit.

Title 24 addresses:

Insulation levels and envelope performance
Window U-factor and SHGC values
HVAC system efficiency requirements
Water heating system performance
Mechanical ventilation standards
Lighting efficiency and controls (especially in commercial projects)
Solar photovoltaic requirements for certain new homes

Title 24 compliance is demonstrated through documentation, typically generated using CEC-approved software when performance modeling is required.

What Is HERS Testing?

HERS stands for Home Energy Rating System. In California, HERS testing is a third-party field verification process required for certain energy measures under Title 24.

When comparing Title 24 vs HERS testing, think of it this way:

Title 24: The design and documentation requirements.
HERS testing: The field verification that confirms installation meets those requirements.

HERS testing may include:

Duct leakage testing
Refrigerant charge verification
Airflow testing
Fan efficacy verification
Quality insulation installation verification
Whole-house ventilation airflow verification

Not every project requires HERS testing, but many residential projects do—especially when HVAC systems or ducts are involved.

Title 24 vs HERS Testing — Key Differences

Understanding Title 24 vs HERS testing becomes clearer when you break down their roles.

1. Design vs Verification

Title 24: Establishes energy design requirements and modeling assumptions.
HERS testing: Confirms the installed systems meet those assumptions.

2. Timing

Title 24: Completed before permit approval.
HERS testing: Conducted during or after installation, before final inspection.

3. Documentation

Title 24: Generates Certificates of Compliance (CF1R or NRCC forms).
HERS testing: Produces verification documentation (CF3R forms) confirming field performance.

4. Who Performs the Work

Title 24: Typically prepared by an energy consultant or qualified professional using approved software.
HERS testing: Conducted by a certified HERS rater performing field measurements.

When Is HERS Testing Required?

In the Title 24 vs HERS testing discussion, one of the most common questions is whether HERS testing is mandatory.

HERS testing is often required for:

New HVAC system installations
Ducted heat pump systems
Duct alterations or replacements
Quality insulation installation verification
Whole-house ventilation systems

Some smaller alterations may not trigger HERS testing, but many projects involving mechanical changes do.

Why Passing Plan Check Doesn’t Guarantee Passing HERS

One of the biggest misunderstandings in Title 24 vs HERS testing is assuming that approved paperwork guarantees field compliance.

A project can:

Pass plan check with approved Title 24 documentation
Install equipment that differs from the approved model
Fail duct leakage testing
Fail refrigerant charge verification

When installed systems do not match the modeled assumptions or fail performance thresholds, the project cannot receive final approval until corrections are made.

How Title 24 and HERS Work Together

Rather than separate requirements, Title 24 vs HERS testing are parts of a unified compliance system.

Title 24 establishes:

Required efficiency levels
Assumed system performance
Mandatory measures

HERS testing confirms:

The installation matches those requirements
Performance meets minimum thresholds
Field conditions align with documentation

When coordinated properly, the transition from modeling to verification is smooth.

Common Mistakes in Title 24 and HERS Coordination

Misunderstanding Title 24 vs HERS testing often leads to:

HVAC substitutions not updated in the energy report
Duct configurations that don’t meet modeled assumptions
Missed verification triggers
Scheduling HERS testing too late in the construction process
Failure to provide required CF3R verification forms at inspection

Early coordination between the energy consultant, contractor, and HERS rater prevents these issues.

How to Ensure Smooth Compliance

To manage Title 24 vs HERS testing efficiently:

Confirm required HERS measures during design.
Align mechanical selections with energy modeling inputs.
Schedule HERS verification before drywall closure when required.
Update documentation if equipment changes occur.
Keep communication open between all parties.

If your project has failed HERS testing or received compliance corrections, call (626) 365-1518, upload your plans via our contact page, or email info@title24energy.com with “Title 24 vs HERS” in the subject line.

We’re Ready To Take Your Call

Understanding Title 24 vs HERS testing ensures your project moves from design approval to final inspection without unexpected setbacks. Title 24 establishes energy compliance on paper; HERS testing verifies it in the field. Both must align for successful permit closeout.

Call (626) 365-1518 today to coordinate your energy documentation and verification requirements properly.

Frequently Asked Questions About Title 24 vs HERS Testing

1. Is Title 24 the same as HERS testing?

No. Title 24 sets energy standards; HERS testing verifies installation performance.

2. Do all projects require HERS testing?

No, but many residential HVAC-related projects do.

3. Does commercial construction require HERS?

Typically HERS is most common in residential projects, though certain measures may require verification.

4. Can I pass Title 24 but fail HERS?

Yes, if installed systems do not meet required thresholds.

5. What does duct leakage testing measure?

It measures air leakage from duct systems.

6. Who performs HERS testing?

A certified HERS rater conducts the field verification.

7. Are HERS documents submitted to the city?

Yes, verification forms are required for final approval.

8. Does Title 24 require modeling?

Performance compliance often requires modeling with approved software.

9. When should HERS testing be scheduled?

During construction, before final inspection.

10. What happens if HERS testing fails?

Corrections must be made and retesting scheduled.

11. Does HERS testing verify window performance?

No, window performance is documented under Title 24 modeling.

12. Are heat pumps subject to HERS verification?

Often yes, especially in new installations.

13. Does refrigerant charge require verification?

Yes, many systems require refrigerant charge testing.

14. Are ventilation systems tested?

Whole-house ventilation airflow may require verification.

15. Is insulation quality verified?

Certain projects require quality insulation installation verification.

16. Can documentation errors cause HERS issues?

Yes, mismatched documentation can complicate verification.

17. Is HERS part of plan check?

HERS is primarily a field verification process.

18. Do additions trigger HERS testing?

Often yes, when HVAC systems are altered.

19. Can coordination prevent failure?

Yes, early alignment between modeling and installation reduces risk.

20. How do I coordinate Title 24 and HERS testing?

Call (626) 365-1518 or submit your plans through our contact page to ensure both compliance and verification are properly handled.

Title 24 vs CalGreen Requirements

Posted on February 24, 2026 by Title 24 Energy

Title 24 vs CalGreen Requirements — Understanding the Differences in California Building Compliance

If you’re comparing Title 24 vs CalGreen requirements, you’re not alone. Many property owners, architects, contractors, and developers assume these two terms mean the same thing. They don’t. While both are part of California’s building regulations and both impact permit approval, they regulate different aspects of construction.

Understanding the difference between Title 24 vs CalGreen requirements can prevent confusion during design, plan check, and inspection. One focuses primarily on energy efficiency. The other addresses broader sustainability, environmental performance, and resource conservation measures. Knowing how they work together helps ensure your permit package is complete and your inspections go smoothly.

If you need help coordinating Title 24 compliance with overall building code requirements, call (626) 365-1518 to get started.

What Is Title 24?

Title 24 refers to the California Code of Regulations that govern building standards. When most people say “Title 24,” they are specifically referring to Title 24, Part 6 — the Building Energy Efficiency Standards.

Title 24 energy standards regulate:

Insulation levels (walls, roofs, floors)
Window U-factor and SHGC performance
HVAC system efficiency requirements
Duct leakage limits
Mechanical ventilation standards
Lighting efficiency and controls (especially commercial)
Solar photovoltaic (PV) requirements for certain new residential construction

In short, Title 24 focuses on how efficiently a building uses energy.

What Is CalGreen?

CalGreen refers to the California Green Building Standards Code (Title 24, Part 11). While it exists within the broader Title 24 framework, it serves a different purpose than energy compliance.

CalGreen regulates:

Water conservation measures (low-flow fixtures)
Indoor air quality standards
Construction waste reduction and recycling requirements
Material conservation measures
Electric vehicle (EV) charging infrastructure requirements
Mandatory and voluntary green building measures

CalGreen focuses on sustainability and environmental impact beyond energy efficiency.

Title 24 vs CalGreen Requirements — Key Differences

Understanding Title 24 vs CalGreen requirements becomes easier when you compare them directly.

1. Primary Focus

Title 24 (Part 6): Energy performance and efficiency.
CalGreen (Part 11): Sustainability, environmental responsibility, and resource conservation.

2. Documentation Requirements

Title 24: Requires energy compliance documentation (certificates of compliance, modeling outputs, etc.).
CalGreen: Requires plan notes, specifications, and field verification of green building measures.

3. Modeling vs Specification

Title 24: Often requires energy modeling using CEC-approved software (for performance pathway).
CalGreen: Generally relies on prescriptive measures and checklists incorporated into plans.

4. Enforcement Points

Title 24: Reviewed at plan check and verified at inspection (including possible HERS verification).
CalGreen: Reviewed at plan check and verified during inspections for water efficiency, waste management, and other measures.

How Title 24 and CalGreen Work Together

Rather than competing codes, Title 24 vs CalGreen requirements are complementary. A single project in California must often comply with both.

For example:

A new home must meet Title 24 energy performance standards and also include CalGreen water conservation measures.
A commercial tenant improvement may require Title 24 lighting compliance and CalGreen waste diversion documentation.
A multi-family development must satisfy energy modeling requirements while also meeting CalGreen material and air quality standards.

Failing to address either can delay permit approval.

Common Confusion Between Title 24 and CalGreen

When comparing Title 24 vs CalGreen requirements, confusion often arises in these areas:

EV Charging: Many assume EV requirements are part of energy modeling; they fall under CalGreen infrastructure requirements.
Water Heating: Energy efficiency is Title 24; water conservation fixture flow rates fall under CalGreen.
Ventilation: Whole-house ventilation is primarily Title 24; pollutant control measures may be tied to CalGreen.
Lighting Controls: Energy performance is Title 24; certain environmental material measures are CalGreen.

Understanding which code section governs which requirement avoids incomplete submittals.

Do Both Codes Change Over Time?

Yes. Both Title 24 energy standards and CalGreen requirements are updated on scheduled code cycles. This means:

Energy efficiency thresholds may increase.
Solar and electrification requirements may evolve.
Water conservation standards may tighten.
EV infrastructure requirements may expand.

Using current standards is essential for permit approval.

How to Ensure Compliance With Both Codes

To manage Title 24 vs CalGreen requirements effectively:

Coordinate energy modeling early in design.
Include CalGreen notes directly in architectural sheets.
Confirm window and HVAC selections before permit submission.
Review EV charging infrastructure requirements for the project type.
Ensure construction waste management plans are documented.

Professional coordination reduces correction notices.

If your permit submission has been delayed due to confusion between Title 24 and CalGreen requirements, call (626) 365-1518, upload your plans through our contact page, or email info@title24energy.com with “Title 24 vs CalGreen” in the subject line.

We’re Ready To Take Your Call

Understanding Title 24 vs CalGreen requirements is essential for smooth permit approval in California. While Title 24 focuses on energy performance and CalGreen emphasizes sustainability and resource conservation, both must be addressed properly in your construction documents.

Call (626) 365-1518 today to ensure your project complies with both energy and green building standards before submission.

Frequently Asked Questions About Title 24 vs CalGreen Requirements

1. Are Title 24 and CalGreen the same?

No. Title 24 primarily regulates energy efficiency, while CalGreen focuses on sustainability and environmental standards.

2. Do both apply to residential projects?

Yes, most new residential projects must comply with both codes.

3. Do both apply to commercial buildings?

Yes, commercial projects must meet energy and green building standards.

4. Is energy modeling required for CalGreen?

No, energy modeling is associated with Title 24 performance compliance.

5. Does CalGreen regulate water usage?

Yes, it includes water conservation fixture requirements.

6. Does Title 24 regulate HVAC efficiency?

Yes, HVAC performance standards fall under Title 24.

7. Are EV charging requirements part of Title 24?

EV infrastructure is typically governed under CalGreen.

8. Do both codes require plan-check review?

Yes, both are reviewed during permit processing.

9. Can failing one code delay permit approval?

Yes, compliance with both is required.

10. Are lighting controls part of Title 24?

Yes, especially for commercial buildings.

11. Does CalGreen require waste management plans?

Yes, construction waste reduction is a CalGreen requirement.

12. Do additions trigger both codes?

Often yes, depending on scope.

13. Are remodels subject to CalGreen?

Many remodels must meet certain CalGreen measures.

14. Do both codes update regularly?

Yes, they follow scheduled code cycles.

15. Can one consultant handle both?

Yes, experienced professionals coordinate both requirements.

16. Is solar PV a Title 24 requirement?

For many new homes, yes.

17. Does CalGreen address indoor air quality?

Yes, it includes IAQ measures.

18. Can misclassification cause rejection?

Yes, misunderstanding which code governs a measure can lead to corrections.

19. Are tenant improvements subject to both?

Often yes, depending on scope and building type.

20. How do I ensure full compliance?

Call (626) 365-1518 or submit your plans through our contact page to coordinate both Title 24 and CalGreen requirements.

Title 24 Consultant Qualifications California

Posted on February 24, 2026 by Title 24 Energy

Title 24 Consultant Qualifications California — How to Choose the Right Compliance Expert

If you’re searching for Title 24 consultant qualifications California, you’re likely trying to avoid a very real pain point: permit delays caused by incomplete, inaccurate, or mismatched energy compliance documents. In California, Title 24 energy compliance is part of the building code, and building departments expect energy documentation to be prepared using the correct compliance pathway, current CEC-approved tools (when performance modeling is used), and plan-aligned specifications that a reviewer can verify quickly.

The challenge is that “Title 24 consultant” can mean different things depending on who you ask. Some providers focus on fast forms with minimal review. Others treat compliance as a technical workflow that protects your plans, your schedule, and your inspections. This guide explains Title 24 consultant qualifications California in practical terms—what experience actually matters, which skills reduce plan-check comments, and what you should look for before you hand over your plan set.

If you want a compliance team that prepares permit-ready documentation daily and can help you avoid corrections, call (626) 365-1518.

What “Qualified” Means in the Real World of Plan Check

When people ask about Title 24 consultant qualifications California, they often assume there is one official state license that “makes someone qualified.” In practice, qualifications are demonstrated through technical competence, correct use of the compliance method, familiarity with state-approved software outputs, and the ability to coordinate your plans with your energy documentation so the building department can verify it.

A qualified consultant consistently produces:

Compliance documents that match the latest plan revision (no mixed versions).
Model inputs that align with window schedules, insulation notes, and mechanical schedules.
Documentation that addresses the correct scope (new construction vs. addition vs. remodel vs. TI).
Packages that anticipate common plan-check questions and reduce back-and-forth.

That outcome-based definition is how you can safely evaluate “qualifications,” regardless of marketing language.

Core Title 24 Consultant Qualifications in California

Below are the main Title 24 consultant qualifications California that tend to produce clean approvals and fewer corrections.

1) Strong Working Knowledge of Title 24, Part 6 Compliance Pathways

A qualified consultant knows how to choose and apply the correct compliance approach for the project scope. This is critical because the same building can be noncompliant on paper if the scope is categorized incorrectly. Examples include:

Modeling an addition like new construction when the permit scope is an alteration/addition pathway.
Applying a residential approach to a space that should be treated as nonresidential (or vice versa).
Missing required commercial lighting documentation for a tenant improvement.

Correct pathway selection is one of the fastest ways to prevent rejection.

2) Proficiency With CEC-Approved Title 24 Software (And Current Versions)

A key part of Title 24 consultant qualifications California is proven proficiency with CEC-approved tools and the ability to produce clean, readable outputs. A qualified consultant:

Uses the correct software for the project type (residential vs. nonresidential).
Confirms the software version aligns with the current code cycle in effect for the permit application.
Understands how software assumptions translate to plan-check expectations (so the forms match the drawings).

If the modeling tool or version is wrong, the report can be rejected even if the building “should” comply.

3) Plan Coordination Skills (The Hidden Qualification Most People Miss)

Many rejected reports are not rejected because they “fail Title 24.” They are rejected because they do not match the plans. A qualified consultant has a repeatable plan coordination process that checks for:

Window U-factor and SHGC values matching the window schedule exactly.
Insulation R-values matching details, sections, and general notes without conflicts.
HVAC system type, fuel type, and efficiency ratings matching the mechanical schedule.
Ventilation strategy clearly represented in both the report and plan notes.
Commercial lighting power density and controls aligned with the electrical set.

This is the qualification that protects your schedule.

4) Ability to Interpret and Resolve Plan-Check Comments

A consultant can only be considered qualified if they can respond to a correction notice efficiently. That requires:

Understanding what the reviewer is asking (and what they are actually verifying).
Identifying whether the fix is a plan update, a report update, or both.
Producing a clean resubmittal package without introducing new conflicts.

If a consultant blames the city for “being picky” but can’t resolve comments quickly, that’s a red flag.

5) Field Awareness for Verification and Inspections

Even when the report is accepted, compliance can fail during installation or verification if the modeled measures are impractical or unclear. A qualified consultant understands how modeling assumptions affect:

HERS verification triggers and documentation flow (when applicable).
Common inspection failure points (duct leakage, equipment mismatches, missing controls).
How to document measures so contractors can install and verify them correctly.

This helps prevent “passed plan check, failed inspection” scenarios.

What Credentials or Backgrounds Are Common Among Qualified Title 24 Consultants?

People researching Title 24 consultant qualifications California often want to know what “background” is normal. You’ll commonly see qualified consultants who come from:

Building science and energy modeling backgrounds
Mechanical design or HVAC coordination backgrounds
Architecture or construction documentation backgrounds
HERS-related workflows and verification coordination

What matters most is not the label—it’s the ability to produce accurate, coordinated, plan-check-ready documentation and support revisions when the real world changes.

Red Flags That Suggest the Consultant May Not Be Qualified

Here are common warning signs that a provider may not meet practical Title 24 consultant qualifications California:

They don’t ask for the full plan set: If someone can “do it without plans,” the risk of mismatch skyrockets.
They don’t request a window schedule or mechanical schedule: These are primary plan-check verification items.
They promise instant results without clarifying scope: Speed is fine, but not without scope confirmation and coordination.
They can’t explain what triggers revisions: If they can’t tell you when an update is required, you’ll get blindsided later.
They can’t support resubmittals: Cities issue comments; qualified consultants know how to resolve them cleanly.

A qualified consultant may still offer fast turnaround, but the intake process will be disciplined.

Questions to Ask Before Hiring a Title 24 Consultant in California

If you want to evaluate Title 24 consultant qualifications California quickly, ask questions that reveal their process:

Which compliance pathway will you use for my scope, and why?
Which CEC-approved software will you use for my project type?
How do you verify the report matches my latest plan revision?
What items do you cross-check first (windows, insulation, HVAC, lighting)?
If the city issues plan-check comments, how do you handle revisions and resubmittals?
Will my compliance assumptions be practical to verify in the field?

A qualified consultant answers clearly without vague “don’t worry about it” language.

How We Meet Title 24 Consultant Qualifications in California

We approach compliance as a coordinated workflow, not a one-click form. Our process is designed to reduce rejection risk by aligning energy documentation with your plan set before submission. We support residential and commercial compliance, revisions, and resubmittals across California.

To get started, call (626) 365-1518, upload your plans through our contact page, or email info@title24energy.com with “Consultant Qualifications” in the subject line. If you already have plan-check comments, include them so we can address the reviewer’s exact request.

We’re Ready To Take Your Call

The best way to evaluate Title 24 consultant qualifications California is to look for a provider who consistently produces permit-ready documents that match the plan set, uses current CEC-approved tools, and can resolve plan-check comments without chaos. If you want a compliance partner that protects your timeline from design through submittal and beyond, call (626) 365-1518 today.

Frequently Asked Questions About Title 24 Consultant Qualifications California

1. What are the most important Title 24 consultant qualifications in California?

Correct pathway selection, proficiency with CEC-approved software, strong plan coordination, and the ability to resolve plan-check comments.

2. Is a specific state license required to prepare Title 24 reports?

Usually the focus is on accurate, verifiable documentation; however, other parts of a permit set may require licensed professionals depending on scope.

3. Do qualified consultants use CEC-approved software?

Yes, especially for performance compliance; using correct tools and versions reduces rejection risk.

4. Why is plan coordination considered a qualification?

Because most rejections happen when the energy report doesn’t match plans—windows, insulation, HVAC, or scope.

5. Can an architect be a qualified Title 24 consultant?

Yes, if they have experience with modeling and compliance workflows, though many use specialists for efficiency.

6. Can a contractor be qualified to prepare Title 24 documentation?

In some cases, but success depends on experience with modeling and coordination; many contractor-prepared reports are rejected due to mismatches.

7. What should a consultant request during intake?

A full plan set, window schedule, insulation callouts, mechanical schedule, and project scope details.

8. What is a common reason a report gets rejected?

Window U-factor/SHGC values or HVAC efficiencies not matching the submitted schedules.

9. Do qualified consultants help with resubmittals?

Yes, they should be able to address plan-check comments and produce a clean revised package.

10. How do consultants prevent “mixed revision” errors?

By confirming the plan revision date and cross-checking schedules and notes before finalizing the report.

11. Are commercial projects more complex for compliance?

Often yes, especially with lighting power density, controls, and multi-discipline coordination.

12. What qualifications matter for tenant improvements?

Experience with nonresidential documentation, lighting controls, and scope classification for TI work.

13. Should a consultant understand inspection and verification issues?

Yes, field awareness helps prevent failed inspections caused by impractical assumptions.

14. Does “fast turnaround” mean lower quality?

Not necessarily, but qualified consultants still use a disciplined intake and coordination process.

15. Can software proficiency alone make someone qualified?

No—accuracy, plan alignment, and correct pathway selection are equally important.

16. What is a red flag when hiring a consultant?

If they don’t need plans or schedules, or they can’t explain how they handle revisions.

17. Do ADUs require the same level of consultant qualification?

Yes, ADUs can be rejected for the same mismatch issues as larger projects.

18. Can a consultant validate an existing report prepared by someone else?

Yes, validation can identify mismatches and correction risks before submission.

19. What should I do if I already received plan-check comments?

Provide the correction notice and the latest plan set so the consultant can address the reviewer’s request precisely.

20. How do I hire a qualified Title 24 consultant in California?

Call (626) 365-1518 or upload your plans through the contact page to get started.

Who Can Legally Prepare a Title 24 Report in California?

Posted on February 24, 2026 by Title 24 Energy

Who Can Legally Prepare a Title 24 Report — A Practical Guide for California Permits

If you’re asking who can legally prepare a Title 24 report, you’re already thinking like a permit reviewer—and that’s a good thing. In California, Title 24 energy compliance is part of the building code, and jurisdictions expect energy documentation to be prepared correctly, using the correct compliance pathway, and generated with state-approved tools. While many people casually say “only a licensed person can do it,” the real-world answer is more nuanced. What matters to building departments is that the report is produced using the correct California Energy Commission (CEC) approved method and software (when required), and that the final documents are accurate, complete, and match the plan set being submitted.

This page explains who can legally prepare a Title 24 report in a way that helps you make safe decisions without getting stuck in internet myths. We’ll walk through common roles (energy consultants, architects, engineers, designers, contractors, owners), what they can typically do, what the city usually cares about at plan check, and how to protect yourself from rejected reports and inspection problems later. If you want your project handled by an experienced team that prepares permit-ready documentation every day, call (626) 365-1518.

What a “Title 24 Report” Means in Practice

A “Title 24 report” is the set of compliance documentation used to demonstrate that a residential or nonresidential project meets California’s Building Energy Efficiency Standards (Title 24, Part 6). Depending on the scope and building type, this typically includes certificates of compliance (for example, residential compliance forms), and supporting software outputs generated through a prescriptive or performance approach.

In everyday permit workflows, cities use these documents to confirm that:

The correct compliance pathway was used for the project scope (new construction, addition, remodel/alteration, tenant improvement, etc.).
Key regulated components (windows, insulation, HVAC, lighting/controls for commercial, ventilation, water heating) are represented accurately.
The energy documentation matches the drawings and schedules in the permit plan set.

So when people ask who can legally prepare a Title 24 report, it’s often because they want to avoid problems like: “report rejected,” “plan check comments,” “mismatch between plans and energy report,” or “failed Title 24 inspection.”

So… Who Can Legally Prepare a Title 24 Report?

In general, California does not treat Title 24 energy compliance documentation as a single “licensed-only” document the way certain stamped engineering calculations might be treated. Instead, building departments focus on whether the report is prepared using the correct standards and approved tools, and whether it can be verified. That said, the person preparing the report must have the technical competence to model the building correctly, interpret the code correctly, and produce documentation that holds up to plan check and inspection.

In real projects, Title 24 reports are most commonly prepared by:

Energy consultants / Title 24 specialists who work primarily in compliance modeling and documentation.
HERS-related professionals when verification is required and the project needs coordination from design through installation and testing.
Architects or building designers who are trained and experienced in energy modeling (less common as a primary role, but it happens).
Mechanical engineers or building performance engineers who produce compliance documentation as part of broader system design.

The “legal” piece becomes more sensitive when someone attempts to represent themselves as a licensed professional they are not, when the work crosses into regulated professional engineering/architecture practice, or when a jurisdiction requires additional documentation beyond the energy report itself. For example, some projects include mechanical design, lighting design, or other calculations that may require a licensed engineer or architect depending on scope and jurisdictional requirements. The energy report itself is typically not “stamped” the way structural engineering plans are, but your overall permit package may still require licensed professionals for other aspects of the design.

What Building Departments Usually Check (And Why Expertise Matters)

Even if many people can technically “run software,” not everyone can prepare a report that passes plan check. Building departments and plan reviewers tend to focus on validation items that are easy to cross-check against the plan set. Common review triggers include:

Window U-factor / SHGC mismatch: Values on energy forms do not match the window schedule.
Insulation conflicts: R-values differ across details, sections, or general notes.
HVAC mismatch: System type or efficiency ratings on mechanical schedule do not match the compliance documentation.
Scope errors: An addition is modeled like new construction, or a tenant improvement is documented under the wrong approach.
Commercial lighting controls not documented: Power density, controls, zoning, and daylighting requirements are unclear.
Outdated software/version: The output is not generated using an approved tool/version aligned with the current code cycle.

This is why the practical answer to who can legally prepare a Title 24 report is: someone who can deliver a compliant, verifiable, plan-check-ready package—and who understands how to keep it consistent with the drawings.

Can an Owner or Contractor Prepare Their Own Title 24 Report?

This is one of the most common follow-up questions after who can legally prepare a Title 24 report. In theory, an owner or contractor could attempt to prepare compliance documentation—especially if they have access to the correct software and understand the code requirements. In practice, most owner/contractor-prepared reports fail for one of two reasons:

Coordination gaps: The report doesn’t match the plan set because schedules and notes change during design or bidding.
Technical errors: The model inputs are incorrect (wrong climate zone, wrong system type, incorrect assemblies, incorrect lighting controls, etc.).

If a contractor is also installing systems that will later be verified (for example, ducts, HVAC, insulation quality installation, certain ventilation measures), the bigger risk is creating a compliance package that looks fine on paper but is difficult to verify in the field. That can lead to rework, failed verification, and delayed final approval.

For that reason, most successful projects rely on an experienced compliance team—even when the contractor is highly capable—because energy documentation must be both accurate and verifiable.

Do Architects and Engineers Prepare Title 24 Reports?

Yes, architects and engineers can prepare Title 24 documentation if they have the correct tools and experience. In many cases, though, they delegate the compliance modeling to a specialist because it saves time and reduces plan-check risk. Think of it like this: Title 24 modeling is its own technical workflow, and doing it well requires routine exposure to plan-check trends, software updates, and common rejection reasons across jurisdictions.

Architects often benefit from a compliance specialist because it keeps design decisions aligned with compliance targets early. Engineers often benefit because it prevents efficiency mismatches and helps coordinate assumptions that affect inspections later.

What About “Certified” vs. “Licensed” Language?

Another reason people ask who can legally prepare a Title 24 report is confusion around terms like “certified,” “licensed,” “registered,” and “approved.” Here’s a practical way to think about it:

Licensed usually refers to state licensing for regulated professions (e.g., Professional Engineer, Architect, Contractor license). Title 24 reports are typically not “stamped” by these licenses, but other parts of the permit set may require licensed professionals depending on scope.
Certified is often used in the industry to describe training, experience, or affiliation with verification programs. It can also refer to third-party verification roles on certain measures.
CEC-approved software is about the tools used to generate the compliance forms and outputs. Using approved software (and the correct version) is a major part of whether a report is accepted.

The safest strategy is to use qualified professionals who produce compliant documentation routinely and understand how to coordinate the report with your plans and schedules.

How to Verify the Title 24 Report You’re Submitting Is Legit

Regardless of who can legally prepare a Title 24 report, you should protect your permit timeline by confirming the documentation is review-ready. Before submission, verify the following:

Plan revision match: The report reflects the same plan revision date you are submitting.
Window schedule match: U-factor and SHGC values match exactly.
HVAC match: System type, fuel type, and efficiencies match the mechanical schedule.
Insulation match: R-values and assemblies match the details and notes across sheets.
Commercial lighting documentation: If applicable, lighting power density and control requirements are clearly documented.
Required forms included: The correct certificates and supporting outputs are included in the upload.

If a city rejects your report, it is often because one of these alignment checks fails.

How We Help When You Need a Permit-Ready Title 24 Report

If you want an experienced team to handle compliance from start to finish, we prepare Title 24 documentation for residential and commercial projects across California, and we focus heavily on plan alignment so reviewers can verify the submission quickly.

Call (626) 365-1518, upload plans through our contact page, or email info@title24energy.com with “Who Can Prepare Title 24” in the subject line. If you already received plan-check comments, include them so we can address the reviewer’s exact concern.

We’re Ready To Take Your Call

The simplest way to answer who can legally prepare a Title 24 report is this: a qualified professional who can produce a compliant, verifiable package using approved methods and tools, and who can coordinate that package with your plans so it passes plan check and supports inspection requirements later. If you want the safest path to permit approval, call (626) 365-1518 today.

Frequently Asked Questions About Who Can Legally Prepare a Title 24 Report

1. Who can legally prepare a Title 24 report in California?

Typically, trained Title 24 energy consultants, building performance professionals, and experienced designers or engineers who use approved methods and produce verifiable documentation.

2. Do Title 24 reports have to be prepared by a licensed engineer?

Usually no, but other parts of your permit package may require licensed engineering or architectural services depending on project scope.

3. Can an architect prepare a Title 24 report?

Yes, if they have the correct tools and experience, though many architects use specialists for speed and consistency.

4. Can a contractor prepare a Title 24 report?

In some cases, but it is often risky unless the contractor is experienced in compliance modeling and plan coordination.

5. Can a homeowner prepare their own Title 24 report?

A homeowner can attempt it, but many self-prepared reports are rejected due to technical errors or mismatches with plans.

6. Does the city verify who created the report?

Cities typically verify the content, software outputs, and alignment with plans more than the job title of the preparer.

7. What makes a Title 24 report “valid” for plan check?

Correct compliance pathway, approved software outputs (when required), and exact alignment with the submitted plan set.

8. Can I use any energy modeling software?

No. Performance compliance documentation must be generated using California Energy Commission approved software for the applicable code cycle.

9. What causes a report to be rejected most often?

Mismatches between the energy report and the plans—windows, insulation, HVAC, lighting, or scope classification.

10. Does “certified” mean the report is automatically accepted?

Not automatically. Acceptance depends on accuracy, completeness, and plan alignment.

11. Can a Title 24 report be updated after plans change?

Yes. When regulated components change, the report should be revised to match the updated plans.

12. Is a Title 24 report required for additions?

Many additions require compliance documentation, especially when conditioned floor area increases or regulated systems are affected.

13. Is a Title 24 report required for remodels?

Many remodels require compliance documentation when windows, insulation, HVAC, lighting (commercial), or envelope elements are altered.

14. Do tenant improvements need Title 24 documentation?

Most commercial tenant improvements require nonresidential compliance documentation, especially for lighting and mechanical changes.

15. Does the report need to match the mechanical schedule exactly?

Yes. HVAC system type, fuel type, and efficiencies should match to avoid plan-check comments.

16. Can a report pass plan check but still fail inspection?

Yes. If installed systems don’t match the approved documentation or required verification steps aren’t completed, inspections can fail.

17. Is HERS verification part of “who can prepare the report”?

HERS verification is separate from preparing the report, but the report must reflect measures that can be verified in the field.

18. What should I provide to get a report prepared correctly?

Permit-intent plans, window schedule, insulation callouts, mechanical schedule, and any plan-check comments if already issued.

19. How do I confirm my report is coordinated with my plans?

Cross-check window values, insulation notes, and HVAC efficiencies between the plans and the compliance forms before submission.

20. How do I get help preparing a compliant Title 24 report?

Call (626) 365-1518 or upload your plans through the contact page to get started.

Title 24 Energy Report Validation

Posted on February 24, 2026 by Title 24 Energy

Title 24 Energy Report Validation — Ensuring Your Compliance Documents Are Accurate and Permit-Ready

Before submitting energy documentation to the building department, completing a thorough Title 24 energy report validation process can prevent costly plan-check corrections and inspection delays. In California, Title 24 compliance is strictly enforced. Even small inconsistencies between plans and energy forms can trigger rejection notices or failed inspections.

Title 24 energy report validation is the process of reviewing energy modeling inputs, output forms, and plan coordination to confirm that all compliance documentation is accurate, consistent, and aligned with the current California Energy Code. Whether your project involves new construction, a remodel, an addition, or a commercial tenant improvement, validation ensures your documentation stands up to review.

If you need professional validation before permit submission or after receiving corrections, call (626) 365-1518 to begin.

What Is Title 24 Energy Report Validation?

Title 24 energy report validation involves systematically reviewing compliance documentation to confirm:

All modeling inputs match architectural and mechanical plans
Window U-factor and SHGC values align with schedules
Insulation R-values match plan callouts
HVAC efficiency ratings are entered correctly
Lighting power density calculations are accurate (commercial)
Correct compliance pathway was selected
Software version matches the current code cycle

Validation reduces the risk of rejection due to mismatches or outdated assumptions.

Why Energy Report Validation Matters

Without proper Title 24 report validation, projects may encounter:

Plan-check rejection
Title 24 compliance corrections required
Mismatches between installation and documentation
Delayed inspections
Reinspection fees and construction delays

Validation acts as a quality control step before documentation is submitted to the city.

Residential Title 24 Energy Report Validation

For residential projects, Title 24 energy report validation typically includes reviewing:

CF1R certificates of compliance
Envelope modeling inputs
Duct leakage assumptions
Whole-house ventilation details
Solar PV system entries (if required)

Common residential validation issues include window substitutions not reflected in the report or HVAC efficiencies entered incorrectly.

Commercial Title 24 Energy Report Validation

For commercial and nonresidential projects, validation may focus on:

NRCC forms and compliance summaries
Lighting power density calculations
Lighting control zoning documentation
Mechanical efficiency values
Daylighting zone compliance

Because commercial compliance often involves multiple disciplines, coordination review is critical.

Validation After Plan-Check Comments

If your project has received correction notices, Title 24 energy report validation can identify:

Where documentation does not align with plans
Whether incorrect compliance pathway was used
If performance assumptions need adjustment
Whether revised documentation is required

A structured validation process ensures corrections are addressed completely before resubmittal.

Common Issues Found During Validation

A professional Title 24 report validation often uncovers:

Incorrect climate zone selection
Outdated modeling software versions
Improper building orientation inputs
Missing mandatory measure documentation
HVAC equipment substitutions not updated in forms
Lighting wattage exceeding allowable limits

Correcting these issues early prevents larger compliance problems later.

Validation Before Inspection

Energy compliance continues into construction. Title 24 energy report validation before inspection ensures:

Installed equipment matches approved documentation
Efficiency ratings are confirmed
HERS verification requirements are identified
Any substitutions are updated in revised reports

Pre-inspection validation reduces the likelihood of failed Title 24 inspections.

How to Request Title 24 Report Validation

To begin the validation process, gather:

Approved or draft Title 24 compliance forms
Architectural and mechanical plan sets
Equipment schedules and model numbers
Any plan-check comments received

Submit your documentation for review so inconsistencies can be identified and corrected.

Call (626) 365-1518, upload documents through our contact page, or email info@title24energy.com with “Energy Report Validation” in the subject line.

We’re Ready To Take Your Call

A thorough Title 24 energy report validation protects your project from preventable plan-check rejections and inspection failures. With accurate review, coordinated corrections, and updated documentation when necessary, your energy compliance process becomes predictable and efficient.

Call (626) 365-1518 today to validate your Title 24 energy report before submission or inspection.

Frequently Asked Questions About Title 24 Energy Report Validation

1. What is Title 24 energy report validation?

It is a review process that ensures energy compliance documentation matches plans and code requirements.

2. Is validation required by the city?

Not formally, but validation helps prevent rejection and corrections.

3. Can validation prevent plan-check rejection?

Yes, it reduces the risk of documentation mismatches.

4. What documents are needed for validation?

Energy forms, architectural plans, mechanical schedules, and any correction notices.

5. Does validation include software version review?

Yes, confirming use of current CEC-approved software.

6. Can validation identify incorrect climate zone selection?

Yes, climate zone errors are common issues.

7. Is validation useful before inspection?

Yes, it ensures installation matches approved documentation.

8. Can commercial lighting errors be identified?

Yes, lighting power density and control issues are reviewed.

9. Does validation include HVAC efficiency verification?

Yes, model numbers and efficiency ratings are confirmed.

10. Can validation support resubmittals?

Yes, it ensures corrections are addressed completely.

11. Are multi-family projects validated differently?

The review follows residential modeling standards but includes additional coordination.

12. Can ADU reports be validated?

Yes, ADUs require the same accuracy as other residential projects.

13. What is a common validation finding?

Window values not matching plan schedules.

14. Can outdated modeling invalidate a report?

Yes, outdated software can lead to rejection.

15. Does validation include mandatory measure review?

Yes, mandatory measures must be documented correctly.

16. How long does validation take?

Timing depends on project complexity.

17. Is validation different from full modeling?

Yes, validation reviews existing documentation rather than creating a new report.

18. Can validation reduce inspection failures?

Yes, by identifying mismatches before field verification.

19. Does validation help with equipment substitutions?

Yes, substitutions must be reflected accurately in documentation.

20. How do I request Title 24 energy report validation?

Call (626) 365-1518 or submit your documents through our contact page to begin the review process.

Title 24 Compliance Documentation Requirements Guide

Posted on February 24, 2026July 23, 2026 by Title 24 Energy

Title 24 Compliance Documentation Requirements Guide

A well-designed construction project can still lose valuable time at plan check when its energy forms are missing, incomplete, or inconsistent with the drawings. This Title 24 Compliance Documentation Requirements Guide explains what California permit applicants should prepare, how the principal document types work together, and why careful coordination matters from the first plan review through final inspection.

Energy compliance is not limited to running a calculation and attaching the result to a permit package. The documentation must accurately describe the proposed building, identify the applicable compliance method, list the regulated materials and systems, and correspond with the architectural, mechanical, electrical, plumbing, lighting, and equipment information shown elsewhere in the plans.

When one document identifies a particular window value and the window schedule shows another, the reviewer may issue a correction. When the energy model specifies one HVAC system and the mechanical plans specify something different, the permit may be delayed. Even a compliant design can encounter unnecessary problems when the submitted documents do not tell one clear and consistent story.

Title24Energy.com provides online remote energy-compliance support for homeowners, architects, engineers, designers, contractors, developers, and permit applicants throughout California. Call or text (626) 365-1518 to discuss your plans and determine which documentation may be required for your project.

What the Title 24 Compliance Documentation Requirements Guide Covers

The term Title 24 Compliance Documentation Requirements Guide refers to the complete collection of design certificates, calculations, installation records, verification documents, acceptance-test forms, specifications, and supporting plan information used to demonstrate compliance with California’s Building Energy Efficiency Standards.

The applicable requirements are determined by the building type, project scope, code cycle, compliance pathway, and energy features included in the design. A new single-family residence does not use exactly the same documents as a commercial tenant improvement. A low-rise multifamily project has different documentation categories from a high-rise multifamily building. An addition may also require different forms from an HVAC-only alteration.

The permit package may need to address:

The project address and applicable California climate zone
The building occupancy and proposed use
New construction, addition, alteration, conversion, or equipment-replacement scope
Conditioned and unconditioned floor areas
Insulation and building-envelope assemblies
Window and glazed-door performance
Heating, cooling, ventilation, and duct systems
Domestic water-heating equipment
Indoor and outdoor lighting
Lighting and mechanical controls
Solar photovoltaic and battery-storage systems when applicable
Electric-ready requirements when applicable
Field verification and diagnostic testing
Nonresidential acceptance testing
Required signatures, registration, and responsible parties

A complete package should identify the required measures early enough for the architect, contractor, installer, energy consultant, rater, and acceptance-test technician to understand their respective responsibilities.

The Applicable Code Cycle Matters

California updates its building-energy standards on a recurring cycle. Permit applications submitted on or after January 1, 2026, are generally subject to the 2025 Energy Code. Projects associated with an earlier permit application may fall under a previous code cycle.

The selected forms, approved software version, calculations, and supporting requirements must correspond with the code cycle enforced for the permit. Reusing documents from an older project without confirming the applicable standards can produce incorrect forms and immediate plan-check questions.

The Plans and Forms Must Describe the Same Project

The energy documentation should not be prepared as an isolated report. It must align with the permit-intent drawings. The floor area, orientation, window schedule, insulation values, equipment efficiencies, water-heating systems, lighting design, ventilation strategy, and other regulated features should remain consistent throughout the package.

When the design changes after the calculations are completed, the effect on compliance should be reviewed before the revised plans are submitted or the substituted equipment is installed.

Certificates Used for Energy Code Compliance

The required certificate names vary by building classification, but the documentation generally follows three stages: design compliance, installation, and field confirmation. Certain nonresidential systems may also require formal acceptance testing.

Certificate of Compliance

The Certificate of Compliance documents how the proposed design is intended to meet the applicable energy requirements. It is generally prepared during design and submitted with the permit package.

Depending on the project, the certificate may be identified as a CF1R, LMCC, or NRCC form. Performance projects may include forms and reports generated by approved modeling software. Prescriptive projects may use forms that document compliance with individual component requirements.

Certificate of Installation

The Certificate of Installation records how a regulated feature or system was installed. These documents are generally completed during construction by the contractor, installer, or other responsible party.

Installation forms should identify the materials and equipment actually used at the project. They should not simply repeat an outdated design assumption when the installed product or system has changed.

Certificate of Verification

A Certificate of Verification documents required field verification or diagnostic testing. Depending on the measure, this work may involve duct testing, airflow measurement, refrigerant-charge verification, building-envelope leakage testing, ventilation testing, insulation inspection, or confirmation of specific equipment features.

Projects subject to these measures must follow the applicable Energy Code Compliance provider and registration process. Verification should be scheduled at the proper stage of construction because some features cannot be evaluated accurately after they have been concealed.

Certificate of Acceptance

Certificates of Acceptance are used for applicable nonresidential systems and controls. Lighting controls, mechanical systems, and certain covered processes may require acceptance testing by an authorized technician or Certified Acceptance Test Technician.

Acceptance testing is not merely a paperwork exercise. It confirms that specified systems and controls have been installed, programmed, and operating as required. Identifying the applicable tests before construction is complete can prevent a last-minute delay at final inspection.

Single-Family Title 24 Documentation Guide

Single-family projects commonly use the CF series of compliance documents. The exact forms depend on whether the project involves a newly constructed building, an addition, an alteration, a space-conditioning-system replacement, or another regulated scope.

CF1R Certificate of Compliance

The CF1R is the primary design-stage certificate for applicable single-family projects. It may document:

Conditioned floor area
Wall, roof, ceiling, floor, and slab assemblies
Insulation values and installation requirements
Window and glazed-door performance
Space-conditioning equipment
Duct design, insulation, and location
Whole-building ventilation
Domestic water heating
Solar photovoltaic and battery measures when applicable
Electric-ready measures when applicable
Mandatory efficiency features
Required field verification measures

The CF1R should match the latest architectural and mechanical plans. If the energy documentation shows a different conditioned floor area, window quantity, equipment efficiency, or insulation level, the building department may request revisions before approving the permit.

CF2R Certificate of Installation

CF2R documents are completed for the applicable features installed during construction. They may cover insulation, HVAC equipment, ducts, ventilation, lighting, water heating, solar systems, battery systems, and other regulated components.

The responsible installer should verify the actual product information rather than relying on a preliminary schedule. Product substitutions may need to be reviewed to confirm that the project still complies with the approved design.

CF3R Certificate of Verification

CF3R documents record required field verification and diagnostic testing. The applicable verification measures should already be identified in the design-stage documentation so the contractor can coordinate access and scheduling with the qualified rater.

For projects using the 2025 Energy Code, the current Energy Code Compliance terminology and provider process should be followed. Although many industry participants remain familiar with the previous HERS terminology, current forms should match the applicable code cycle.

Low-Rise Multifamily Compliance Documentation

Low-rise multifamily buildings use a dedicated LM documentation series. Treating every multifamily project as either single-family or conventional commercial work can result in the wrong forms being prepared.

LMCC Certificates of Compliance

LMCC forms document design-stage compliance for applicable low-rise multifamily projects. Separate documentation may be required for:

Building-envelope features
Mechanical systems
Indoor and outdoor lighting
Electrical power distribution
Domestic water heating
Ventilation systems
Solar photovoltaic systems
Battery-storage systems
Commissioning measures
Covered processes

Performance-based multifamily projects may require approved modeling software and project-specific compliance output.

LMCI Certificates of Installation

LMCI forms document the installation of applicable multifamily systems and efficiency measures. The required forms depend on the features included in the design and whether registration or verification applies.

LMCV Certificates of Verification

LMCV documents record required field verification and diagnostic testing. Multifamily projects may involve common-area systems, individual dwelling-unit systems, central water heating, ventilation, lighting, envelope measures, and other features that require careful coordination between multiple trades.

Identifying those responsibilities before construction begins is far easier than trying to locate missing documentation immediately before final inspection.

Nonresidential Title 24 Documentation Guide

Nonresidential, hotel, motel, and applicable high-rise multifamily projects generally use the NR series of compliance documents. These projects often require close coordination between architectural, mechanical, electrical, lighting, plumbing, and control-system information.

NRCC Certificates of Compliance

NRCC forms document design-stage compliance for applicable nonresidential systems. Depending on the scope, the permit package may include documentation for:

Building-envelope assemblies
Heating, cooling, and ventilation systems
Mechanical equipment efficiency
Economizers and mechanical controls
Indoor lighting power
Occupancy and automatic shutoff controls
Daylighting zones and daylighting controls
Outdoor and sign lighting
Electrical power distribution
Domestic water heating
Solar photovoltaic and battery systems
Refrigeration and covered processes
Commissioning requirements

NRCI Certificates of Installation

NRCI forms document that applicable components were installed in accordance with the approved design and mandatory requirements. The responsible contractor or installer generally completes the appropriate form for the system involved.

NRCA Certificates of Acceptance

NRCA forms document required acceptance testing. Lighting controls and mechanical systems may require testing by qualified personnel through an approved Acceptance Test Technician Certification Provider.

The project team should determine which tests apply before installation is complete. A system that cannot pass acceptance testing may require control changes, programming corrections, equipment adjustments, or additional documentation.

NRCV Certificates of Verification

NRCV forms are used when specified nonresidential or multifamily measures require verification through the Energy Code Compliance process. The required forms depend on the building systems and compliance measures identified for the project.

Prescriptive and Performance Compliance Documentation

The selected compliance pathway affects the forms, calculations, and supporting records included in the permit package.

Prescriptive Compliance

The prescriptive method demonstrates that each applicable component meets the requirements assigned to that component. Insulation, glazing, equipment, water heating, lighting, controls, ventilation, and other regulated features are evaluated against the applicable prescriptive standards.

This approach can be practical when the proposed design meets the required values without relying on performance trade-offs. It still requires accurate documentation and coordination with the permit drawings.

Performance Compliance

The performance method uses approved energy-analysis software to compare the proposed design with a standard design established by the Energy Code. This method can provide additional design flexibility by evaluating the building as an integrated system.

Only software approved for the applicable code cycle, building classification, and project scope should be used. A program approved for one occupancy or code cycle may not be authorized for another. Review what software is used to create Title 24 reports for additional information about performance modeling.

Plan Information Needed to Prepare the Documentation

Energy compliance can be prepared more efficiently when the consultant receives a coordinated set of project information. Incomplete plans may require assumptions, additional correspondence, or revisions after the missing details become available.

Architectural Information

Project address
Site plan and building orientation
Dimensioned floor plans
Existing and proposed floor areas
Elevations and building sections
Wall, roof, ceiling, floor, and slab assemblies
Door and window schedules
Window U-factor and solar heat gain coefficient information when selected
Existing, altered, and new construction clearly identified

Mechanical and Ventilation Information

Heating and cooling equipment type
Equipment efficiency
System capacity when available
Duct location and insulation
Thermostat and control information
Whole-building ventilation design
Local exhaust requirements
Economizer information for applicable nonresidential systems

Water-Heating Information

Water-heater type and fuel source
Efficiency and capacity
Distribution-system design
Recirculation information when applicable
Central water-heating details for multifamily projects

Lighting and Electrical Information

Fixture schedules and wattage
Lighting-control design
Occupancy-control zones
Daylighting zones
Outdoor lighting
Electrical-service information
Solar photovoltaic design when applicable
Battery-storage information when applicable
Electric-ready features when applicable

The more accurately the project documents describe the intended construction, the less likely the energy package will need to be rebuilt after plan submission.

Common Documentation Problems That Delay Approval

Permit corrections frequently arise from coordination problems rather than an inherently noncompliant design. A careful review can identify these conflicts before the building department does.

Window Information Does Not Match

The energy model may identify one window area or performance value while the elevations and window schedule show something different. Window quantity, dimensions, orientation, U-factor, and solar heat gain coefficient should remain consistent.

The Floor Area Is Incorrect

Conditioned floor area affects the compliance analysis. Garages, unconditioned storage areas, covered patios, existing rooms, additions, and converted areas should be classified accurately.

Mechanical Equipment Has Changed

Replacing modeled equipment with a different system can affect efficiency, fuel type, controls, ventilation, duct requirements, and overall compliance. Substitutions should be reviewed before installation.

The Forms Reflect an Older Plan Revision

Architectural changes made after the energy calculations were completed may alter glazing, insulation, floor area, equipment, or other regulated features. The final permit package should not combine current drawings with outdated energy forms.

Lighting Controls Are Incomplete

Nonresidential lighting compliance often depends on more than fixture wattage. Occupancy controls, automatic shutoff, daylighting controls, dimming, zoning, and exterior controls may need to appear on the plans and forms.

The Wrong Code Cycle or Software Was Used

Using documents prepared for an earlier code cycle can lead to incorrect forms and assumptions. Performance calculations must use software approved for the code cycle and project classification associated with the permit application.

Required Registration or Signatures Are Missing

Certain compliance documents must be signed, registered, or completed by specific responsible parties. An otherwise accurate form may still be rejected when required certification information is absent.

Documentation Requirements During Construction

The permit-stage report is only the beginning. Energy compliance continues through installation, field verification, testing, and inspection.

Installers Must Follow the Approved Design

Contractors should review the energy requirements before ordering materials or installing equipment. Insulation, windows, HVAC equipment, water heaters, ventilation systems, lighting controls, solar components, and battery systems should correspond with the approved documentation.

Testing Must Be Scheduled at the Proper Time

Ducts, insulation, air barriers, ventilation systems, controls, and other features may need to remain accessible for inspection or testing. Waiting until finishes are complete can make required verification more difficult and expensive.

Construction Changes May Require Revisions

Not every field adjustment requires a complete new energy model, but changes affecting regulated components should be evaluated. When the installed design no longer matches the approved compliance package, revised forms may be required before final approval.

Final Documentation Must Be Completed

Applicable installation, verification, and acceptance documents should be completed and available for the enforcement agency. Missing closeout documentation can delay final inspection even when the physical work appears complete.

Title 24 Compliance Documentation Requirements Guide Checklist

Before submitting the permit package, confirm the following:

The correct code cycle has been selected
The project type and occupancy are classified correctly
The correct CF, LM, or NR form series is being used
The project address and climate zone are accurate
The conditioned floor area matches the plans
The window schedule matches the energy documentation
Insulation values and assemblies are coordinated
Mechanical equipment information is consistent
Ventilation requirements are addressed
Water-heating information is complete
Lighting and control requirements are shown when applicable
Solar and battery requirements are addressed when applicable
The latest plan revision was used
Approved compliance software was used when required
Required field verification measures are identified
Required acceptance tests are identified
Registration and signature requirements are understood
The documentation contains no conflicting project information

Applicants who are uncertain whether their project requires an energy report should review when a Title 24 report is required before submitting plans.

Why Professional Documentation Review Matters

A professionally prepared energy package does more than show a passing result. It gives the building department a coordinated set of documents, gives the contractor clear efficiency requirements, and gives the property owner a better chance of avoiding preventable corrections.

Title24Energy.com evaluates the actual permit scope instead of forcing every project into a generic template. The online remote process allows plans to be reviewed digitally, making it practical for project teams located in different parts of California.

Plan Review Before Modeling

The available drawings are reviewed to identify the project type, conditioned areas, envelope assemblies, glazing, mechanical systems, water heating, lighting, and other regulated features.

Appropriate Compliance Method

The project is evaluated using the documentation and compliance pathway appropriate to its design. When performance modeling is needed, the analysis should use approved software for the applicable code cycle and building classification.

Coordination Before Submission

The prepared forms are compared with the supplied project information to identify visible inconsistencies. This step can help prevent corrections involving floor area, windows, insulation, equipment, lighting, or project classification.

Support for Plan Revisions

Construction plans often evolve. When the design changes or the building department issues an energy-related correction, the affected documentation can be reviewed and updated using the latest information.

For additional information about who may prepare the project documentation, review who can legally prepare a Title 24 report in California.

Title 24 Compliance Documentation Requirements Guide: Make the Permit Package Easier to Approve

Do not let missing forms, outdated calculations, or conflicting specifications turn a manageable permit submittal into weeks of avoidable revisions. The purpose of this Title 24 Compliance Documentation Requirements Guide is to help you identify the documentation early, coordinate the plans carefully, and move forward with a clearer compliance strategy.

Title24Energy.com offers online remote support for new construction, additions, alterations, accessory dwelling units, multifamily developments, commercial tenant improvements, and other permit-driven projects throughout California.

Call or text (626) 365-1518 to discuss your plans today. You can also submit the project through the Title24Energy.com contact page or email info@title24energy.com.

Include the project address, latest drawings, equipment information, applicable lighting plans, permit comments, and intended submission date. The sooner the documents are coordinated, the sooner your permit package can move toward review with fewer surprises.

Frequently Asked Questions About Permit Documentation

What documents are normally submitted with a residential permit?

The package may include a CF1R Certificate of Compliance, software-generated performance documentation when applicable, mandatory-measure information, and coordinated architectural and mechanical specifications.

What is the purpose of a CF1R form?

A CF1R records how an applicable single-family design is intended to comply with the Energy Code at the permit stage.

What is a CF2R form?

A CF2R is a Certificate of Installation used to document applicable energy features and systems installed during construction.

What is a CF3R form?

A CF3R is a Certificate of Verification used for required field verification and diagnostic testing on applicable single-family projects.

Which forms apply to low-rise multifamily buildings?

Applicable low-rise multifamily projects may use LMCC Certificates of Compliance, LMCI Certificates of Installation, and LMCV Certificates of Verification.

Which forms apply to commercial projects?

Applicable nonresidential projects may require NRCC, NRCI, NRCA, and NRCV documents depending on the scope, systems, and testing requirements.

Do all permitted projects require energy calculations?

No. The requirement depends on the work being permitted and whether it affects components regulated by the Energy Code.

Can old energy forms be reused?

They should not be reused without confirming the code cycle, project address, design, scope, software approval, and current permit requirements.

Why must window information match the plans?

Window area and performance affect energy compliance. Differences between the forms, elevations, and window schedule may produce corrections or require recalculation.

Can HVAC equipment be substituted during construction?

A substitution may be possible, but the replacement equipment should be reviewed for efficiency, capacity, controls, ventilation, and consistency with the approved documentation.

Are solar forms required for every project?

No. Solar and battery requirements depend on the building type, construction scope, code provisions, and any applicable exceptions.

What is the difference between prescriptive and performance compliance?

Prescriptive compliance evaluates individual components against specified requirements. Performance compliance uses approved software to compare the proposed building with a standard design.

Do commercial tenant improvements require energy forms?

They may. Lighting, controls, mechanical systems, ventilation, water heating, envelope changes, and other regulated work can trigger documentation requirements.

Are installation forms completed during plan check?

Installation forms are generally completed during construction by the responsible contractor or installer, although the permit package should identify the expected documentation.

What is acceptance testing?

Acceptance testing confirms that applicable nonresidential systems and controls have been installed and operate as required.

What happens when the plans change after the report is prepared?

The changes should be reviewed to determine whether the calculations, forms, or supporting specifications need to be updated.

Can missing documents delay final inspection?

Yes. Required installation, verification, acceptance, registration, or signature information may need to be completed before final approval.

How long does documentation preparation take?

Timing depends on the project size, complexity, completeness of the plans, compliance method, and number of revisions required.

What should be submitted for a professional review?

Provide the project address, latest architectural plans, mechanical information, window schedule, lighting plans when applicable, equipment specifications, and any plan-check corrections.

How do I begin?

Call or text (626) 365-1518 or submit the project through the contact page for an online remote review.

CEC Approved Title 24 Software

Posted on February 24, 2026 by Title 24 Energy

CEC Approved Title 24 Software — What You Must Use for California Energy Compliance

When preparing energy documentation in California, using CEC approved Title 24 software is not optional. The California Energy Commission (CEC) requires that all performance-based compliance reports be generated using software that has been officially approved for the current code cycle. If the wrong software is used—or outdated versions are submitted—your Title 24 documentation can be rejected at plan check.

Whether you are building a custom home, designing an ADU, completing a tenant improvement, or developing a commercial project, compliance modeling must follow strict state guidelines. CEC approved Title 24 software ensures that calculations, assumptions, and output forms align with the current California Energy Code.

If you need permit-ready compliance prepared using approved tools, call (626) 365-1518 to get started.

What Is CEC Approved Title 24 Software?

CEC approved Title 24 software refers to energy modeling programs reviewed and certified by the California Energy Commission for use in demonstrating compliance with Title 24, Part 6 of the Building Energy Efficiency Standards.

These programs are tested to confirm that:

Energy calculations follow the current code methodology
Baseline comparisons are properly generated
Mandatory measures are enforced within the modeling structure
Output forms meet state submission requirements

Only software listed as approved by the CEC may be used for official performance compliance documentation.

Commonly Used CEC Approved Title 24 Software

For residential and nonresidential projects, commonly used CEC approved Title 24 software includes:

Residential Software

EnergyPro – Widely used for residential performance modeling
CBECC-Res – CEC-developed residential compliance tool

Nonresidential Software

CBECC-Com – CEC-approved tool for commercial buildings
Other approved vendor software listed by the CEC for specific code cycles

Each software platform must match the active Title 24 code cycle in effect at the time of permit submission.

Why Using Approved Software Matters

Using non-approved tools or outdated versions can result in:

Plan-check rejection
Invalid compliance documentation
Calculation discrepancies
Mandatory measure omissions
Delays in permit approval

CEC approved Title 24 software ensures that your project’s energy model reflects current state requirements and produces the correct certificates of compliance.

Prescriptive vs. Performance Modeling

The California Energy Code allows both prescriptive and performance pathways. However, when performance modeling is selected, CEC approved Title 24 software must be used.

Prescriptive Method:
Follows minimum component standards without whole-building modeling.

Performance Method:
Uses approved modeling software to compare proposed design performance against a baseline standard.

Performance modeling often provides more flexibility for:

Custom home designs
Large window areas
Unique HVAC configurations
Mixed-use developments

Residential Applications of CEC Approved Software

For residential projects, CEC approved Title 24 software is used to model:

New custom homes
ADUs and garage conversions
Room additions
Whole-house remodels
Multi-family housing

The model accounts for insulation levels, glazing performance, HVAC efficiencies, ventilation systems, duct leakage assumptions, and water heating systems.

Commercial Applications of CEC Approved Software

For commercial and nonresidential projects, modeling includes:

Lighting power density calculations
Automatic lighting controls
Mechanical system efficiencies
Economizer requirements
Envelope performance compliance

Accurate modeling ensures compliance with both mandatory measures and performance thresholds.

Common Mistakes When Using Title 24 Software

Even when using CEC approved Title 24 software, errors can occur due to incorrect inputs or poor coordination. Common issues include:

Entering incorrect HVAC efficiency ratings
Mismatched window U-factor or SHGC values
Failing to update reports after design revisions
Incorrect building orientation inputs
Improper lighting power density calculations

Professional oversight ensures that modeling inputs match the construction documents exactly.

How to Ensure Your Project Uses Approved Software

To ensure compliance:

Confirm the software version matches the current code cycle
Work with an experienced Title 24 consultant
Verify output forms include required compliance certificates
Update reports whenever plans change

If your city has questioned your compliance documentation or rejected your report, professional review may be necessary.

Call (626) 365-1518, upload plans through our contact page, or email info@title24energy.com with “CEC Software” in the subject line.

We’re Ready To Take Your Call

Using CEC approved Title 24 software is essential for producing valid, permit-ready energy documentation in California. When modeling is completed correctly and aligned with your plans, compliance becomes predictable and efficient.

Call (626) 365-1518 today to ensure your Title 24 report is prepared using officially approved software tools.

Frequently Asked Questions About CEC Approved Title 24 Software

1. What is CEC approved Title 24 software?

Software certified by the California Energy Commission for generating performance-based compliance documentation.

2. Is approved software mandatory?

Yes, for performance modeling under Title 24 requirements.

3. What happens if non-approved software is used?

The energy report may be rejected during plan check.

4. What residential software is commonly approved?

EnergyPro and CBECC-Res are commonly used tools.

5. What commercial software is approved?

CBECC-Com and other CEC-listed vendor software.

6. Does software need to match the current code cycle?

Yes, outdated versions can invalidate compliance documentation.

7. Can prescriptive compliance avoid modeling software?

In some cases, yes—but performance modeling requires approved software.

8. Can incorrect inputs cause rejection?

Yes, even approved software can produce invalid reports if data is wrong.

9. Are ADUs modeled with approved software?

Yes, ADUs require compliant residential modeling.

10. Do tenant improvements require approved software?

Most commercial TIs require nonresidential compliance modeling.

11. What is the performance method?

A modeling approach comparing proposed design to a baseline building.

12. What is the prescriptive method?

A compliance pathway requiring minimum component standards.

13. Can software account for solar PV systems?

Yes, PV assumptions are incorporated into residential modeling.

14. Are lighting controls modeled in software?

Yes, particularly in commercial compliance.

15. Can a city question software output?

Yes, reviewers may verify alignment with plans and code.

16. How long does modeling take?

It depends on project complexity, but many residential projects are completed within days.

17. Can mixed-use buildings be modeled?

Yes, using appropriate separation between residential and commercial areas.

18. Does software generate compliance certificates?

Yes, approved software produces required documentation forms.

19. What if plans change after modeling?

The report must be updated to reflect revised inputs.

20. How do I ensure my report uses approved software?

Call (626) 365-1518 or submit your plans through our contact page to confirm proper compliance preparation.