CITY OF FORT COLLINS ADOPTED CODES#
Effective April 15, 2022 All construction within the City of Fort Collins that applied for permit on or after this date shall comply with following codes adopted by City Council.
- Significant Changes Summary
- Mobile devices: Look for a green bar on the bottom of your screen. Select "Table of Contents"
- Some of the international codes are now offered in Spanish: Spanish Editions
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Adopted Codes |
Local Amendments to the Adopted Codes |
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2021 IFC - International Fire Code
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(NEW!) 2021 International Plumbing Code
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Effective August 1, 2023 |
no amendments |
| Accessibility State Law: CRS 9-5 | no amendments |
| 2017 ICC-A117.1 - Accessibility | no amendments |
STRUCTURAL DESIGN CRITERIA#
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
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Basic Wind Speed:
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Front Range Gust Map (ASCE 7-10 compatible published by The Structural Engineer's Association of Colorado (dated 10/18/2013)
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- Risk Category ll (most structures): 140mph (Ultimate) exposure B
- Risk Category l: 130mph (Ultimate) exposure B
- Risk Category lll & lV: 150mph (Ultimate) exposure B
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Front Range Gust Map (ASCE 7-10 compatible published by The Structural Engineer's Association of Colorado (dated 10/18/2013)
INTERPRETATIONS AND APPROVALS#
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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8/19/2021 - 4/22/2022 Water bottle filler alternate to required drinking fountains (interpretation no longer valid)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
10/28/2022 Ducts in floor above garage insulation
10/28/2022 Insulation for sunrooms and heated garages
12/16/2022 Crawl space intended for storage (fire protection of floors)
6/7/2023 Accessibility upgrades required in commercial spaces
8/21/2023 Residential energy storage system (ESS) listing and labeling within a dwelling
10/20/2023 Receptacle outlet location for island and peninsula counters 2023 NEC
6/21/2024 Total Electric Heating - (electric resistant heat)
5/15/2025 EV Parking requirements
9/17/2025 Public vs Private toilet facilities
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Floor Fire Protection APA alternates
PWT deck products (Product specs need to be provided at permit submittal)
Diamond Piers (Product specs need to be provided at permit submittal)
PRIOR CODES#
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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