PLEASE NOTE, beginning October 26, 2022, the City of Helena Building Division will enforce the 2021 edition of the International Codes, Uniform Plumbing Code and the 2020 edition of the National Electrical Code along with the State of Montana, Administrative Rules amendments and as amended in City Code, Title 3. All permit applications received on or after October 26, 2022 will be reviewed under the newly adopted codes. For more information see Open Letter of Final Adoption(PDF, 169KB) or contact the City Building Division at (406) 447-8438.
The Building Codes listed below are effective as of October 26, 2022 The codes have been adopted and amended by the Administrative Rules of Montana (ARM) Title 24, Chapter 301, and adopted by the City of Helena in Title 3 of the City Code.
Design Requirements