A Title 24 compliance report and a HERS rater are related but separate requirements, and understanding the difference will help you plan your project and budget correctly.
Title 24 Report (CF1R or LMCC)
Prepared before construction begins by a certified energy analyst. The report models your project using CEC-approved software and demonstrates on paper that your design meets California energy efficiency standards. Required for permit application. This is what Title24Comply provides.
HERS Rater
A certified Home Energy Rating System rater who visits the job site during and after construction to verify that what was actually built matches what was modeled in the compliance report. The HERS rater signs off on field verification forms (CF2R and CF3R) that are submitted to the building department at final inspection.
Is a HERS rater always required?
Not always. Certain residential projects require HERS field verification depending on the compliance measures selected and the scope of work. For example, projects that use high-efficiency HVAC systems or specific insulation pathways to achieve compliance may trigger HERS verification requirements. Your energy analyst will note any HERS requirements on your CF1R.
In short: You need the Title 24 report first (for permit submittal), and a HERS rater later if required (for final inspection). Title24Comply provides the report — you will need to arrange HERS field verification separately when applicable.