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.