Codes || Building Services

Codes and Standards#

Effective for building permits applied for between: January 12, 2019 - April 14th, 2022

All construction within the City of Fort Collins shall comply with following codes adopted by City Council.

2019 Contractor Code Amendment Training - Video

Structural Design Criteria for Fort Collins

Snow Load: Live Load: 30 PSF / Ground Snow Load 30 PSF
Frost Depth: 30 inches
Seismic Design Category: B
Basic Wind Speed:
- Risk Category ll (most structures):
  - 140mph (Ultimate) exposure B or
  - Front Range Gust Map (ASCE 7-10 compatible published by The Structural Engineer's Association of Colorado, dated 10/18/2013)
- Risk Category l: 130mph (Ultimate) exposure B
- Risk Category lll & lV: 150mph (Ultimate) exposure B

Adopted Codes	Local Amendments to the Adopted Code
2018 IBC - International Building Code	IBC local amendments NEW! IBC Amendment supplement update 8/30/2019
2018 IRC - International Residential Code	IRC local amendments NEW! IRC Amendment Supplement update 8/30/2019
2018 IECC - International Energy Code	2018 IECC local amendments
2018 IMC - International Mechanical Code	2018 IMC local amendments
2018 IFGC - International Fuel and Gas Code	2018 IFGC local amendments
2018 IPSC - International Swimming Pool and Spa Code	2018 ISPSC local amendments
2018 International Plumbing Code Colorado Plumbing Code	IPC local amendments
2018 International Existing Building Code	2018 IEBC local amendments
2020 National Electric Code, effective August 1, 2020	NEW! 2020 NEC Amendments effective 10/16/2020
2006 IPMC International Property Maintenance Code with Local Amendments
Accessibility State Law: CRS 9-5
2017 ICC-A117.1 - Accessibility Code

Effective April 15, 2022 All construction within the City of Fort Collins shall comply with following codes adopted by City Council.

Structural Design Criteria for Fort Collins

Ground Snow Load: 35 PSF
Frost Depth: 30 inches
Seismic Design Category: B
Basic Wind Speed:
- Front Range Gust Map (ASCE 7-10 compatible published by The Structural Engineer's Association of Colorado (dated 10/18/2013)
  - Or
- Risk Category ll (most structures): 140mph (Ultimate) exposure B
- Risk Category l: 130mph (Ultimate) exposure B
- Risk Category lll & lV: 150mph (Ultimate) exposure B

Significant Changes Guide to the 2021 Codes

2021 code changes guide

Adopted Codes	Local Amendments to the Adopted Code
2021 IBC - International Building Code	2021 IBC local amendments
2021 IRC - International Residential Code	2021 IRC local amendments
2021 IECC - International Energy Conservation Code	2021 IECC local amendments
2021 IFC - International Fire Code effective 6/20/2022 https://www.poudre-fire.org/	2021 IFC local amendments effective 6/20/2022
2021 IMC - International Mechanical Code	2021 IMC local amendments
2021 IFGC - International Fuel and Gas Code	2021 IFGC local amendments
2021 IPSC - International Swimming Pool and Spa Code	2021 ISPSC local amendments
2018 International Plumbing Code Colorado Plumbing Code	Plumbing code local amendments
2021 International Existing Building Code	2021 IEBC local amendments
2020 National Electric Code, Effective August 1, 2020	2020 NEC Amendments effective 10/16/2020
2021 IPMC International Property Maintenance Code	2021 IPMC local amendments
Accessibility State Law: CRS 9-5	no amendments
2017 ICC-A117.1 - Accessibility Code	no amendments