CF2R-MCH-01-E: The HVAC Installation Certificate Explained
The 2025 list has no single CF2R-MCH-01-E. The mechanical installation certificate comes in four versions: 01a-E for performance compliance, 01b-E for prescriptive alterations, 01c-E for prescriptive newly constructed buildings and 01d-E for existing plus addition plus alteration. The CF1R in your permit set tells you which one you need.
- Choose your report
- Upload your plans
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- Permit-ready report by email
Why the bare number leaves the installer guessing
Plan-check notes and older checklists still say CF2R-MCH-01-E. Appendix A of the single-family manual splits it by letter, so a note that drops the letter has to be clarified. Ask the reviewer which one is meant, or read it off the CF1R.
The four versions by title
- 01a-E: Space Conditioning Systems, Performance.
- 01b-E: Space Conditioning Systems, Prescriptive Alterations. An HVAC changeout is documented on the prescriptive alterations CF1R-ALT-02-E, so this is the version an alteration normally points to. The manual does not state the pairing in words, so check it against the blank form.
- 01c-E: Prescriptive Newly Constructed Buildings.
- 01d-E: Existing plus Addition plus Alteration.
Test certificates that sit beside it
When the CF1R calls for rater verification, the installer also completes test-result CF2Rs, and the ones numbered 20 to 28 each have a CF3R with the same number:
- 20-H duct leakage, 21-H duct location, 22-H fan efficacy
- 23-H airflow rate, 24-H enclosure air leakage worksheet, 25-H refrigerant charge
- 26-H rated equipment verification, 27-H indoor air quality and mechanical ventilation, 28-H return duct and filter sizing
The CF3R-MCH list by number describes the rater's side of each.
Who does what, in order
The installer performs the first test, and if the results confirm compliance signs, registers the CF2R and posts the registered copy. The ECC-Rater checks that registration before testing and may not file a CF3R without it. The page on who completes CF2R forms covers signatures and delegation.
Check before you sign
- The building permit number under which the work was done, which every certificate of installation must state.
- The declaration that the installation conforms to the codes and to the plans the department approved, so the equipment installed has to match what the CF1R lists.
- A registration number, when registration applies.
The design-stage side is on which CF1R an HVAC replacement needs. For the wider picture see the CF2R page, forms by discipline and our residential reports.
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
No. They are separate forms for separate compliance routes, and the installer should use the version that matches the CF1R approved for the permit.
Only the tests the CF1R lists under its ECC required certification section. Ask your plan checker or ECC-Rater which tests apply to your system.
Explore CF2R: Certificate of Installation
- CF2R-SRA-01-E: The Solar Ready Certificate Explained
- What Is a CF2R Certificate of Installation?
- Contractor Left the Job: Who Signs the CF2R Now?
- How Do I Get a Copy of My CF2R?
- Why Are CF2R Forms Missing at Final Inspection?
View all CF2R: Certificate of Installation guides → · Forms and Certificates · Title 24 guide