Which Field Changes Need an Amended CF1R? A Quick Reference
Ask one question: could the change leave the building out of compliance with Part 6? If it could, Section 10-103(a)2B requires amended plans and certificates approved by the building department. The lists below sort common field changes into revise, judgment call and document only, with a page for each.
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The one-question test
If a specification changes before final construction or installation so the building may no longer comply, it must be brought back into compliance and the amended plans, specifications and certificates sent to the enforcement agency for approval. That covers the efficiency or other regulated characteristic of each feature. Neither the code nor the manual gives a pass-fail list, so what follows is a sorting aid, and the department has the last word.
Usually a revision
- A single-glazed metal window for the double-pane vinyl one the CF1R names, the manual's own clear case: changed windows.
- A roofing product that rates below the CF1R values: changed roofing.
- A lower R-value or a different stud depth: changed insulation or framing.
- A smaller or shadier solar array: changed solar size.
- An addition that crosses a size line: changed square footage.
Judgment calls
- Orientation of the house or the location of a window, which the manual calls difficult to judge: mirrored or rotated house.
- HVAC type, size or efficiency, or the water heater: different equipment than the CF1R.
Usually just the certificate
A lighting swap that stays within the mandatory rules rarely touches the CF1R, as lighting changes explains. Any product that matches or beats the specified value should still be named on the installer's certificate, and the department says whether it wants more.
What a revision sets in motion
A field change that causes noncompliance needs the department's approval of revised plans and energy documents, and earlier-phase parties repeat and revise their certificates or reinstall compliant parts. A revised registered document gets a new revision digit, and registered dependents lose status until signed again. Certificates are trade-specific, so a change in one trade usually touches one family of CF2R. The permit applicant and the agency share the job of judging change orders, so ask before installing; start any new report at our residential reports.
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Frequently Asked Questions
Not necessarily. The test is whether the change may take the building out of compliance. Ask the department, and make sure the installer's certificate shows what went in.
Where registration applies, yes. The revision is signed again, its revision digit goes up and the earlier version becomes obsolete.
Explore Title 24 Revisions
- Changed HVAC After the CF1R: What to Do
- Changed Water Heater After the CF1R: What to Do
- Changed Windows After the CF1R: What to Do
- Changed the Roofing After the CF1R: What to Do
- Changed the Insulation or Wall Framing After the CF1R: What to Do
View all Title 24 Revisions guides → · Permits and Compliance · Title 24 guide