2023 National Electrical Code - Effective August 1, 2023
The 2023 edition of NFPA 70 National Electric Code (NEC) was adopted by the State of Colorado and enforced by Larimer County, effective August 1, 2023.
Building Codes for all permits initiated on or after March 1, 2022
- 2021 International Residential Code (IRC)
- 2021 International Building Code (IBC)
- 2021 International Energy Conservation Code (IECC)
- 2021 International Existing Building Code (IEBC)
- 2021 International Fuel Gas Code (IFGC)
- 2021 International Mechanical Code (IMC)
- 2021 International Plumbing Code (IPC)
- 2021 International Property Maintenance Code (IPMC)
- 2021 International Swimming Pool and Spa Code (ISPSC)
- 2023 National Electrical Code (NEC)
Amendments
Where can I find more information?
2021 Significant Changes
Recorded Webinar - 2021 Significant Code Changes
- International Codes and “Significant Changes” books for purchase
- Read-Only Version of Each International Code
- Read-Only Version of the National Electrical Code (NEC)
- Codes Adopted in Larimer County
- Please contact Chief Building Official Eric Fried by email to efried@larimer.org with questions, comments, or to be notified of our webinar(s)
Resources for Energy Code Updates
