What Is the Difference Between a CF1R, CF2R and CF3R?
They are three stages of one paper trail. The CF1R, the certificate of compliance, is the design and is signed before the permit. The CF2R, the certificate of installation, is each installer's record, signed during construction. The CF3R, the certificate of verification, is the ECC-Rater's test result, signed near final. Many jobs never reach a CF3R.
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In the order they appear
- CF1R. The project proponent has it prepared for plan check. The person eligible to accept responsibility for the design signs it.
- CF2R. The installing contractor completes one for each regulated installation as the work goes in. The person in charge of that installation, or an authorized representative, signs.
- CF3R. It exists only when a feature needs a test. The ECC-Rater who ran or personally supervised the test is the only possible signer.
Which ones are registered
A CF3R always is. The CF1R and CF2R join it in the registry when the project needs ECC verification, and the manual says all three go into the same registry. A CF3R cannot be submitted for a house that has no registered CF2R from the installer, apart from untested homes in a sample group, so the stages depend on each other.
Jobs with fewer than three
Verification applies only when a regulated feature that needs testing is installed. A house with no ducts has no duct test and therefore no CF3R for it. For a window or water heater swap, the building department may require no certificate at all, or a simplified one.
When a note says only "CF2R missing"
The note leaves out which installation. Each CF2R belongs to a particular contractor and a particular piece of regulated work, so the useful reply is to ask the inspector which work is meant, then call that contractor. The rater is stuck until it exists.
Where copies go
CF2R and CF3R copies are posted at the site or made viewable on the registry for inspections. At final inspection the builder must leave copies of every certificate submitted for the owner, on paper or electronically. Commercial buildings add a fourth family, the certificate of acceptance, explained in acceptance versus verification.
Form by form: CF1R, CF2R, CF3R. Signers: CF2R and CF3R. Inspector checklist: final inspection documents. Start a report with our residential service.
Common Title 24 Questions
- What is a CF1R certificate of compliance?
- What is a CF2R certificate of installation?
- What is a CF3R certificate of verification?
- What is an NRCC form?
- What is an NRCA certificate of acceptance?
- What is an LMCC form?
Frequently Asked Questions
A permitted job normally has a CF1R unless the department waives it for a small alteration. CF2Rs follow the installed regulated work, and a CF3R appears only where a feature needs verification.
The builder leaves copies with the owner at final inspection. Registered ones can also be retrieved from the registry, which keeps them.
Explore Certificates of Compliance
- What Is an LMCC Form?
- Certificate of Acceptance vs Certificate of Verification: What Is the Difference?
View all Certificates of Compliance guides → · Forms and Certificates · Title 24 guide
