International Residential Code
Colorado enforces the 2024 IRC in state buildings only
The record shows the 2024 International Residential Code (IRC) for Colorado, with no in-force date. It applies to state buildings only. Adopted by Office of the State Architect, State Buildings Program. The legal citation is Office of the State Architect, Building Code Compliance Policy Exhibit A (Rev. 10/2026).
Record of adoption
Edition in force
2024 IRC
Partial
- Legal citation
- Office of the State Architect, Building Code Compliance Policy Exhibit A (Rev. 10/2026)
- Adopted by
- Office of the State Architect, State Buildings Program
- Applies
- State buildings only
Exhibit A lists the 2024 IRC for state projects where it applies, with no effective date; the 2025 DFPC redline still listed the 2021 IRC for its buildings.
Exceptions
- Colorado has no statewide building code; counties and municipalities adopt their own
How Colorado adopts the IRC
No state agency adopts the IRC for private housing. The State Buildings Program lists the edition for state projects, and each local government adopts its own residential code.
Cycle. Irregular; local jurisdictions follow the ICC cycle at their own pace.
How it was checked
Partial
Researched in the state’s own record. The seal stays broken until the passage is on file word for word.
The state’s record was last read on , from two source pages.
Evidence 2 sources
Sources for the record itself come first, the state’s own records ahead of others. A label marks a source about something else, such as an exception. A source marked secondary is not the state’s own record.
“The 2024 edition of the International Residential Code (IRC)”
Approved State Building Codes, Exhibit A (Rev. 10/2026)Colorado Office of the State Architectosa.colorado.gov (opens in a new tab)Agency pageRetrieved “Colorado has no statewide building code”
Building CodesColorado Office of the State Architectosa.colorado.gov (opens in a new tab)Agency pageRetrieved
Tracker cross-checks
Code adoption trackers are a cross-check. They are not Colorado’s own record.
ICC’s code adoption mapCross-checkAgrees with the record
State Colorado X (one or more state or local adoptions; no statewide edition), chart as of April 2026