Code amendments
The IRC is the floor. The amendment is what fails inspection.
Every state adopts an amended IRC. Every county can amend further. Every municipality can amend on top of that. SkyCanvass pulls the adopted edition + every amendment for a property in under 100ms.
Why amendments matter
The International Residential Code (IRC) is a model code published by the International Code Council. State legislatures adopt it — usually with amendments. Counties adopt the state version, often with their own amendments. Municipalities adopt the county version, often with theirs. By the time the document is the binding code for a specific property, three to four amendment layers have been stacked on the IRC base.
Citing the IRC alone in a scope of work is a common error. A reviewer who pulls the actual adopted code can flag any line that differs. The fix is to cite the amendment, not the IRC.
Examples
Amendments that change the line item.
Florida · FBC 2023
R4403.4 — re-nail at 6/6 spacing on every re-roof.
Adds a labor line to every Florida re-roof scope that out-of-state contractors typically miss.
Florida (HVHZ) · FBC 2023 + Miami-Dade NOA
TAS 100 / TAS 125 — Notice of Acceptance per product.
Permit applications without the NOAs are returned. Product list is county-specific.
Texas (coastal) · IRC 2021 + Tier I/II
R905.2.7.1 — ring-shank fasteners, 6 per shingle in Tier I.
Standard 4-fastener spec fails inspection along the Gulf Coast.
California · CBC 2022
Chapter 7A WUI — Class A roof + non-combustible valley.
Wood shake banned in WUI; valley type changes from closed-cut to open metal.
How SkyCanvass surfaces them
When you look up an address, the SkyCanvass code packetincludes the IRC base + every amendment layer in effect. Each amendment shows the verbatim text and a source link to the official adopted version. If a reviewer asks where in the code a requirement comes from, the answer is one click from the packet.
The amendment library updates as states publish new editions. FBC 2023, CBC 2022, IRC 2024 — all tracked, with the effective dates noted so a packet generated for a permit pulled in 2025 shows the right edition for the work performed.
Look up amendments for an address.
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