Current Codes
All of the codes listed below are amended and adopted by:
Administrative Rules of Montana (ARM) Title 24, Chapter 301
All Building Codes Adopted by Montana- International Building Code, 2024 Edition - Effective: September 26, 2026
- International Residential Code, 2024 Edition - Effective: September 26, 2026
- International Existing Building Code, 2024 Edition - Effective: September 26, 2026
- International Energy Code, 2024 Edition- Effective: Septemeber 26, 2026
- ICC A117.1 – Accessibility, 2017 Edition – Effective: September 26, 2026
- Uniform Plumbing Code, 2024 Edition - Effective: September 26, 2026
- International Mechanical Code, 2024 Edition - Effective: September 26, 2026
- International Fuel Gas Code, 2024 Edition - Effective: September 26, 2026
- NFPA 99, Standard on Health Care Facilities (med gas), 2018 Edition - Effective: June 11, 2022
- National Electrical Code, 2023 Edition - Effective: September 26, 2026
- American Society of Mechanical Engineers, Boiler and Pressure Vessel Code, 2021 Edition - Effective: November 6, 2021
- American Society of Mechanical Engineers, publication CSD-1, Controls and Safety Devices for Automatically Fired Boilers, 2018 Edition - Effective: November 6, 2021
- Safety Code for Elevators and Escalators, ASME A17.1, 2019 Edition, - Effective: June 11, 2022
- Safety Code for Existing Elevators and Escalators, ASME A17.3, 2017 Edition - Effective: June 11, 2022
- The administrative rules refer to the 2018 edition of ASME A17.3; this is an error the correct edition is the A17.3-2017 edition.
- Safety Standard for Platform Lifts and Stairway Chairlifts, ASME A18.1, 2017 Edition - Effective: June 11, 2022
- International Swimming Pool and Spa Code, 2024 Edition - Effective: September 26, 2026
- Wildland Urban Interface Code, 2024 Edition - Effective: September 26, 2026
NOTE: All of the codes listed above are amended by Administrative Rules of Montana (ARM) Title 24, Chapter 301