Plumbing Permit — Sidney, Montana · Requirements sheet
Verified 2026-07-04 · Source: https://bsd.dli.mt.gov/building-codes-permits/permit-applications/plumbing-permits/index
PermitBase is an independent reference and is not affiliated with any government agency. Requirements change and vary by project — confirm current details with the building department before you submit.
Plumbing Permit in Sidney, Montana
Required for plumbing installations, alterations, and repairs within Sidney city limits. Plumbing is NOT locally certified in Sidney (the DLI roster's Sidney line lists only 'B', no 'P') — it is issued and inspected DIRECTLY by the Montana Department of Labor & Industry, Building Codes Bureau, under the 2021 Uniform Plumbing Code (UPC), effective June 11, 2022. Corroborated by the City's own Building Permit Application forms, which list 'State Plumber Permit (required)' as a checklist item.
Verified 2026-07-04 · Source
When you need this permit
- State plumbing permits are required for all plumbing work in Montana except in certified jurisdictions — Sidney is NOT certified for plumbing, so a State Plumbing Permit is required
- Work must be performed by, or under the direction of, a Montana-licensed Master Plumber; service of a licensed Master Plumber is required on all public/commercial buildings
- Homeowner exemption: a homeowner does not need a state plumbing permit if performing the installation themselves on their own owner-occupied residence, not built for resale or as a rental Owner-builder
- A plumbing inspection must be requested and conducted before any plumbing work is covered
- Application for Plumbing Permit (BCP-1) submitted to the Building Codes Bureau with applicable fee(s), or applied for online at aca-prod.accela.com/bcb
Required documents
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Fee schedule
Review timeline
Inspection process
- 1
Rough-In
Must be requested and conducted before covering any portion of plumbing work
- 2
Final
All fixtures connected, no leaks, proper venting verified
See the full Sidney inspection guide — scheduling & re-inspection fees →
Tips
- Sidney is NOT on Montana's certified-jurisdiction list for plumbing — every plumbing permit there is a STATE permit issued by the Building Codes Bureau, not the City Building Inspector.
- Homeowners performing their own plumbing on their own owner-occupied, non-rental home are exempt from the state plumbing permit requirement. Owner-builder
- Apply online at https://aca-prod.accela.com/bcb/ or mail the paper application with payment to: Department of Labor & Industry, Building Codes Bureau, PO Box 200517, Helena, MT 59620-0517.
Frequently asked questions
Sources & verification
Verified against official sources. Last reviewed 2026-07-04.
Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Sidney building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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