CF1R-ALT-01-E, ALT-02-E and ALT-05-E: Which Alteration Form Is Yours?
Appendix A of the 2025 single-family manual names CF1R-ALT-01-E Prescriptive Alterations, ALT-02-E Prescriptive Alterations HVAC, and ALT-05-E Prescriptive Alterations That Do Not Require Field Verification. The manual's chapters use the numbers inconsistently, so match your job to the blank your department currently accepts.
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Number first, then the job
- ALT-01-E. The general alterations form in Appendix A and chapter 2.
- ALT-02-E. HVAC changeouts in chapter 2. Chapter 9 uses the same number for prescriptive alterations in general, including next to an addition.
- ALT-05-E. Alterations where nothing needs an ECC-Rater, with the installer's CF2R-ALT-05-E as its other half.
The question that sorts them
Ask whether any part of the work needs ECC verification, such as duct testing or refrigerant charge. If yes, ALT-05-E no longer fits and the certificate is registered with an ECC-Provider. If no, ALT-05-E applies, and for a window or water heater swap the department may require no certificate or a simplified one.
Where the manual disagrees with itself
Appendix A is the form list, so a furnace swap lands on ALT-02-E there. A correction note quoting chapter 9 may use ALT-02-E for an alteration that is not an HVAC changeout. Ask which blank the counter wants.
The HVAC timing allowance
For an alteration that needs field verification, an HVAC changeout being the usual case, where the department does not require plans, Section 10-103(a)2A lets the CF1R be approved before final inspection instead of before the permit. The manual adds that with the department's agreement an applicant may apply on an unregistered ALT-03-E or ALT-04-E, depending on climate zone. Neither number is in Table A-1.
When none fits
Every applicable prescriptive requirement must be met. If one alteration cannot, other work must exceed its requirements, and the performance form CF1R-PRF-01-E replaces all three numbers.
By trade: HVAC, windows, water heaters, roofs. The installer's sheet is on CF2R-ALT-05-E, and the CF1R page gives the family. Request an alteration report from 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
Chapter 2 of the manual assigns HVAC changeouts to ALT-02-E. Which duct or charge verification applies depends on the parts replaced. Confirm the blank with the department.
It is for alterations with no field verification, so registration usually does not arise. If a verified measure is added, the job moves off ALT-05-E.
Explore CF1R: Certificate of Compliance
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- CF1R for Home Additions: Which Form Do I Need?
- CF1R for HVAC Replacement: Which Form Do I Need?
- CF1R for Roof and Insulation Alterations
- CF1R for Water Heater Replacement: Which Form Do I Need?
View all CF1R: Certificate of Compliance guides → · Forms and Certificates · Title 24 guide