Frequently Asked Questions
What is a CF1R and How Can I Get One?
A CF1R (Certificate of Compliance), also known as the Title 24 or energy compliance report, is the design phase document of a ECC/HERS report. Typically required by the city before pulling a permit.
You can make a CF1R yourself as a homeowner or contractor on Cheers.org for small HVAC change-outs but we recommend reaching out for help generating a CF1R to ensure the information is correct.
New construction and heavy remodel projects will require an energy consultant or architect using state-approved software.
Do all projects require HERS/ECC testing?
Not all, but most "major" energy changes do. Common triggers include:
New Construction: Always required.
Additions: Usually required for insulation and HVAC.
ADUs (Accessory Dwelling Units): Always required.
HVAC Alterations: Required if you are replacing a furnace, AC, or more than 40 feet of ductwork.
Does this affect my home's resale value?
Yes. When you sell a home in California, you are often required to disclose if work was done with or without permits. Having a completed "Project Status Report" from a HERS/ECC registry proves your home’s systems are efficient, legal, and safe, which is a major selling point.
What is the difference between HERS and ECC?
HERS (Home Energy Rating System) was the term used for over 20 years. Starting in January 2026, California transitioned to the ECC (Energy Code Compliance) program.
They are essentially the same thing: a third-party inspection to ensure your home meets state energy standards.
Why can’t my HVAC contractor do the final testing?
California law requires an independent, third-party to perform the final verification (the CF3R). This prevents a conflict of interest and ensures that the system was installed exactly as designed. Your contractor installs the equipment and signs the CF2R, but only a certified Rater can sign the final CF3R.
How much does the testing cost?
Costs vary depending on the size of the home and the number of tests required (Duct Leakage, Airflow, QII, etc.). On average:
Single HVAC Change-out: $400+ (depending on the number of visits required).
New Construction: $600 – $1,200+ (depending on the title 24 requirements).
Do you Offer Commercial ECC/HERS Testing?
We can test any projects with permits before January 1st 2026. Due to the new regulations part of the 2025 California Building Energy Codes, only Acceptance Test Technicians (ATT) can perform ECC/HERS tests on commercial buildings.
What happens if my project fails the test?
If a system fails (for example, the ducts are leaking more than the allowed 5% for new or 10% for existing ducts), the Rater will provide a report showing the failing leakage rate score.
The contractor must return to fix the issue (e.g., sealing more duct joints). We can provide smoke test services to help find the leak.
The Rater returns to perform a re-test.
Once the system passes, the CF3R is signed and the project can move toward a final building inspection.
Where can I find my project's energy documents?
All your documents (CF1R, CF2R, and CF3R) are stored in a digital registry. Currently the only registry is CHEERS. You (or your contractor / rater) can log in with your project address to download copies for your local building department.
You can also find them in your architect plans.