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Building Code Reference Library
Montana Building Codes
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Below you can find links to Building Codes and Authorities Having Jurisdiction for the state of Montana. To change to another state, click on the map to the right.
This information is obtained directly from the source -- the city, county and state building departments that issue these codes. If you find an error, please send an e-mail with the updated information to RCDWebmaster@ReedBusiness.com.
Notes Concerning Montana Building Codes
• Montana's codes are mandatory statewide for all public and state-owned buildings, except where otherwise indicated below.
• Montana updates its codes every three years.
• Montana updates its codes every three years.
Montana Building Codes
| Code Type | Code Model | Amendment Contact |
| Building/Dwelling Code | IBC 2009 & IRC 2006 (Administrative Rules of Montana, Title 24, Ch. 301, Building Codes Bureau) | Building Codes Bureau, (406) 841-2040 online |
| Structural Code | IBC 2009 (Administrative Rules of Montana, Title 24, Ch. 301) | Building Codes Bureau, (406) 841-2040 online |
| Plumbing Code | UPC 2009 (Administrative Rules of Montana, Title 24, Ch. 301) | Building Codes Bureau, (406) 841-2040 online |
 | Mandatory for all buildings | |
| Mechanical Code | IMC 2009 (Administrative Rules of Montana, Title 24, Ch. 301) | Building Codes Bureau, (406) 841-2040 online |
| Electrical Code | NEC 2008 (Administrative Rules of Montana, Title 24, Ch. 301) | Electrical Safety Section, (406) 841-2047 online |
| Mandatory for all buildings | |
| Fire/Life Safety Code | NFPA 99c, Standard on Gas and Vacuum Systems (med gas), 2005 | State Fire Marshal, (406) 444-2050 online |
| Mandatory for all buildings | |
| Accessibility Code | IBC 2009 & ICC/ANSI A117.1 | Building Codes Bureau, (406) 841-2040 online |
| Energy Code | IECC 2009 | Building Codes Bureau, (406) 841-2040 online |
| Elevator Code | ASME A17.1-2004; A17.1a-2005; A17.1S-2005 | Building Codes Bureau, (406) 841-2040 online |
| Gas Code | IFGC 2009 (Administrative Rules of Montana, Title 24, Ch. 301) | Building Codes Bureau, (406) 841-2040 online |
| Boiler Code | ASME 2004 Boiler & Pressure Vessel Code | Building Codes Bureau, (406) 841-2044 online |
| Public Health Code | None | N/A |
| Hazardous Materials | None | N/A |
Montana Authorities Having Jurisdiction (AHJ)
Authorities Having Jurisdiction are those government officials who are the final authority on questions in a particular area (or jurisdiction).
| Jurisdictional Area | Contact |
| Plumbing | Pam Plovanic Plumbing & Mechanical Permits Phone: (406) 841-2051 |
| Mechanical | Pam Plovanic Plumbing & Mechanical Permits Phone: (406) 841-2051 |
| Electrical | Ellen Granby Electrical Permits Phone: (406) 841-2047 |
| Plan Review | David Cook Plan Review Services Phone: (406) 841-2053 |
| Historic Preservation | Peter Brown Historic Architecture Specialist Phone: (406) 444-7718 |
| Environmental | Richard Opper Director, Dept. of Environmental Quality Phone: (406) 444-2544 Fax: (406) 444-4386 |
| Health Department | Joan Miles Director, Dept. of Public Health & Human Services Phone: (406) 444-5622 Fax: (406) 444-1970 |
| Fire Marshal | Allen Lorenz State Fire Marshal Phone: (406) 444-2050 |
| Forestry/Parks | Department of Fish, Wildlife and Parks Phone: (406) 444-3750 |
| Transportation | Jim Lynch Director, Dept. of Transportation Phone: (406) 444-6200 |
| Boiler Inspector | Jim McGimpsey Boiler Safety Program Phone: (406) 538-2019 Fax: (406) 841-2050 |
| Elevator Inspector | Jennifer Johnson Elevator Safety Program Phone: (406) 841-2064 |
Montana Building Code Website