Who Needs Title 24?
Title 24 applies to the work, not to the person doing it — but what you need from a compliance report depends a great deal on your role in the project.
- Choose your report
- Upload your plans
- Pay securely
- Permit-ready report by email
Homeowners
Most homeowners meet Title 24 when a building department asks for it during plan check, often on an addition, a remodel that touches windows or HVAC, or an ADU. The practical need is a correct report quickly, without having to learn the code.
Architects and designers
Designers usually need compliance confirmed while the design is still moving, so that glazing ratios and equipment selections can be adjusted before drawings are finalised rather than after a correction notice.
Designers and drafters
Most Energy Code corrections trace to the drawings: the duct layout, the water heater closet and the schedules the CF1R has to match.
Title 24 for designers and drafters
Engineers
Mechanical, electrical and plumbing engineers sign the nonresidential certificates for their part of the design, and Part 6 puts acceptance requirements and commissioning measures into the construction documents themselves.
General contractors
Contractors are typically working to a permit deadline and need the certificates that match what will actually be installed, plus the installation and verification documents later in the build.
ADU builders
On a new ADU the builder signs the installation certificates and books the ECC-Rater before the work goes in.
HVAC contractors
A residential changeout is a regulated alteration. The installer runs the first duct and refrigerant tests and signs the CF2R-MCH certificates before an ECC-Rater verifies the work.
Window installers
Window work is proved by the product label rather than a field test, so the label stays on until inspection and has to match the values on the CF1R.
Title 24 for window installers
Solar installers
On a new home the PV array is part of compliance: it has to qualify under Joint Appendix JA11, and the installer certifies it on the CF2R-PVB-01-E.
Builders and developers
Repeat-plan and multi-unit work benefits from consistency: the same assumptions applied across units, and reports that can be reissued as plans evolve without starting over.
Developers
At the scale of a subdivision or a multifamily project, the permit date, group sampling of ECC tests and mixed-use classification decide the schedule.
Property managers
In an occupied building, replacing regulated equipment is an alteration rather than a repair, and each altered unit is tested on its own.
Title 24 for property managers
Explore Who Needs Title 24?
- Title 24 for Window Installers
- Title 24 Support for Architects
- Title 24 Reports for Builders & Developers
- Title 24 Reports for Contractors
- Title 24 for Designers and Drafters
View all Who Needs Title 24? guides → · Title 24 Guide · Title 24 guide