Regulatory framework
The code baseline for Pitkin County.
Pitkin County enforces the 2021 International Building Code series, effective January 30, 2023, and the 2023 National Electrical Code, effective August 1, 2023. County amendments include 2025 energy-code updates and the 2026 Colorado Wildfire Resiliency Code/State Wildfire Hazard Mapping, adding Title 11 Section 11.35 for applications submitted on or after May 2, 2026. Applicable 2021-series codes include the IBC, IRC, IMC, IFGC, IFC, IECC, IEBC, IPMC, ISPSC, ICCPC, and IWUIC as amended; State trade licensing and requirements also apply.