Permit Requirements for Milltown, Montana

For Plumbing projects in Milltown, determining the correct permitting authority depends on whether the project site is located within the incorporated city limits or in an unincorporated area of Missoula 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 Milltown is located within Missoula County, the following broader county regulations may also apply to your project:

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

Missoula County Plumbing Permit Requirements

Missoula County requires permits for various types of work to ensure compliance with local, state, and international building codes. This applies to properties located outside of Missoula city limits. The Building Division is responsible for ensuring the safety of structures within these areas.

For properties in unincorporated areas of Missoula County, permits are generally required for mechanical, electrical, and plumbing work. The county's Building Division works in conjunction with the Planning, Development and Sustainability Department and the Environmental Health Department to permit structures.

Before beginning any project that involves plumbing, it is advisable to check with the Missoula County Building Division. They can help guide you through the necessary steps and requirements. You can apply for permits online through the Missoula County Permit System or in person at a Public Works office.

Plumbing permits, along with electrical and mechanical permits, can be applied for online. However, if your project involves a well or septic system, you will need to submit separate applications to the Health Department. Similarly, floodplain or shoreline permits must be applied for in person or via email to a specific department.

All permit fees must be paid upon pickup of the permits before the inspection card and stamped drawings can be released. The Building Division is self-funded through permit fees and does not receive tax dollars.

Key Points for Plumbing Permits:

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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