Codes and Standards#
- Building Code Interpretations
-
8/11/2020 Interior Stair Design
7/20/2020 Garage Stair Riser Measurement
6/19/2020 Temporary emergency shelter in a structure/building without an R1 Occupancy
8/19/2021 - 4/22/2022 Water bottle filler alternate to required drinking fountains (interpretation no longer valid)
12/2/2021 Backwater Valve - when installation is required
9/27/2022 Insulation for a heated garage
10/28/2022 Ducts in floor above garage insulation
10/28/2022 Insulation for sunrooms and unheated garages
12/16/2022 Crawl space intended for storage (fire protection of floors)
- Approved Alternate Materials and Methods
- 2018 Reference Codes (for building permits applied for between: January 12, 2019 - April 14th, 2022)
-
2018 International Codes#
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
- Risk Category ll (most structures):
Adopted Codes
Local Amendments to the Adopted Code 2018 IBC - International Building Code 2018 IRC - International Residential Code 2018 IECC - International Energy Code 2018 IMC - International Mechanical Code 2018 IFGC - International Fuel and Gas Code 2018 IPSC - International Swimming Pool and Spa Code 2020 National Electric Code, effective August 1, 2020
2006 IPMC International Property Maintenance Code with Local Amendments Accessibility State Law: CRS 9-5 2017 ICC-A117.1 - Accessibility Code
2021 International Codes (Now in Effect)#
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 (see local amendments for code language):
- Ground Snow Load: 35 PSF
- Roof Snow Load: Final design roof snow load (including loading and drifting) shall not be less than a uniformly distributed live load of 30 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
-
Front Range Gust Map (ASCE 7-10 compatible published by The Structural Engineer's Association of Colorado (dated 10/18/2013)
Significant Changes Guide to the 2021 Codes
|
Adopted Codes |
Local Amendments to the Adopted Code |
|---|---|
| 2021 IBC - International Building Code | |
| 2021 IRC - International Residential Code | |
| 2021 IECC - International Energy Conservation Code | |
|
2021 IFC - International Fire Code
|
|
| 2021 IMC - International Mechanical Code | |
| 2021 IFGC - International Fuel and Gas Code | |
| 2021 IPSC - International Swimming Pool and Spa Code | |
|
2020 National Electric Code, Effective August 1, 2020 |
|
| 2021 IPMC International Property Maintenance Code | |
| Accessibility State Law: CRS 9-5 | no amendments |
| 2017 ICC-A117.1 - Accessibility Code | no amendments |