Permit Requirements for Harrison, Montana

For Plumbing projects in Harrison, determining the correct permitting authority depends on whether the project site is located within the incorporated city limits or in an unincorporated area of Madison County.

Authority Having Jurisdiction (AHJ)

Most jurisdictions require permits for Plumbing work to ensure safety and code compliance. The governing body responsible for issuing these permits varies by specific location:

General Plumbing Guidelines

Permits are usually required for new installations, structural modifications, or major repairs. While minor maintenance or cosmetic updates may be exempt, landowners should always verify local codes before work begins.

Because Harrison is located within Madison County, the following broader county regulations may also apply to your project:

Montana, Madison County Plumbing Permit Regulations and County Ordinances for Unincorporated Areas

Madison County Building and Safety Regulations for Unincorporated Areas

In Madison County, Montana, construction and demolition permits for unincorporated areas are administered by the Madison County Sanitarian's office under Ordinance 2-2006. This ordinance outlines the requirements, fees, and penalties associated with construction and demolition projects. It is the property owner's responsibility to determine if a permit is necessary before beginning any work.

The Sanitarian's office is located at 103 W Wallace Street, Virginia City, MT 59755. Applications can be submitted in person, and payment is accepted via check or money order. The county has adopted the 2015 International Building Code and the 2015 International Fire Code, which were updated in February 2020.

Key aspects of the permit process include:

For plumbing-specific permits and inspections within Madison County, it's important to note that while the county handles general construction and demolition permits, some sources indicate that mechanical, electrical, and plumbing permits and inspections may be handled by the City of Rexburg building department in certain contexts, though this requires direct confirmation with the Madison County Sanitarian for clarity on current procedures.

Properties in unincorporated areas must comply with Ordinance 2-2006 for construction and demolition projects. Septic systems also require a permit for installation in Madison County.

Resources to Learn More

The following statewide building codes and regulations apply universally to all jurisdictions within Montana:

Montana Plumbing Legislation, Codes, and Guidelines

State-Level Plumbing Codes in Montana

The State of Montana adopts and enforces the Uniform Plumbing Code (UPC), 2021 Edition. This code is incorporated by reference into the Administrative Rules of Montana (ARM), specifically under Title 24, Chapter 301, Subchapter 3. The state also adopts various appendices to the UPC to address specific requirements, such as water supply sizing, alternate plumbing systems, and sustainable practices.

Regulatory Agencies and Boards

Plumbing regulation in Montana is primarily managed by the Montana Department of Labor & Industry (DLI) through the following entities:

Resources to Learn More

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