Solar PV Permit (Alternative Energy) in Libby, Montana

Libby requires a solar pv permit (alternative energy) for: Electrical interconnection requires a state-issued Residential (or Commercial) Electrical Permit from the Montana DLI Building Codes Bureau — Libby holds no electrical certification of its own; The state Residential Electrical Permit application includes a distinct 'Alternative Energy Source' add-on fee (solar, wind, or hydro), charged in addition to the base electrical work fee selected on the same application; For a RESIDENTIAL installation's structural/racking work, a City of Libby Building Permit (Libby Building Permit Application) is required, reviewed by Building Inspector Walter Snyder against the City's 2021 IRC/IECC/IEBC references, since Libby holds its own residential Building (B) certification; For a COMMERCIAL installation's structural/racking work, the Building Permit is instead issued directly by the state DLI Building Codes Bureau, since Libby's Building certification is residential only; Since January 23, 2012, any new City-issued building permit (i.e., the residential structural component) must also be reviewed and signed off by the Lincoln County Floodplain Manager; Apply for the electrical component in accordance with Title 50, Chapter 60, Section 604, MCA and ARM 24.301.431. If your project isn't listed, confirm with City of Libby Building Department — Building Inspector Walter Snyder; city-certified for Building (B), RESIDENTIAL ONLY, plus Swimming Pool (SP) permits. Commercial building permits, and Electrical, Plumbing, and Mechanical permits for ALL project types (residential and commercial), within Libby city limits are issued directly by the Montana Department of Labor & Industry Building Codes Bureau, not the City. at (406) 293-2731 before starting work.

The state electrical component adds a $65 Alternative Energy Source fee on top of the base electrical work fee selected on the Montana Building Codes Bureau's Residential Electrical Permit application. For a residential structural/racking Building Permit, the City of Libby applies its general Appendix L valuation-based fee table, starting at $24 for a $1-$500 valuation.

Libby does not publish a plan-review timeline for this permit. Contact City of Libby Building Department — Building Inspector Walter Snyder; city-certified for Building (B), RESIDENTIAL ONLY, plus Swimming Pool (SP) permits. Commercial building permits, and Electrical, Plumbing, and Mechanical permits for ALL project types (residential and commercial), within Libby city limits are issued directly by the Montana Department of Labor & Industry Building Codes Bureau, not the City. at (406) 293-2731 for current turnaround.

You'll need: Application for Residential Electrical Permit (state); Libby Building Permit Application (residential structural/racking scope). See the required-documents checklist on this page for details on each.

Libby requires 3 inspection(s) for a solar pv permit (alternative energy), in order: Rough Electrical (state inspector), Frame Inspection (city inspector, residential structural component), Final. Schedule each through City of Libby Building Department — Building Inspector Walter Snyder; city-certified for Building (B), RESIDENTIAL ONLY, plus Swimming Pool (SP) permits. Commercial building permits, and Electrical, Plumbing, and Mechanical permits for ALL project types (residential and commercial), within Libby city limits are issued directly by the Montana Department of Labor & Industry Building Codes Bureau, not the City. ((406) 293-2731).

Apply through City of Libby Building Department — Building Inspector Walter Snyder; city-certified for Building (B), RESIDENTIAL ONLY, plus Swimming Pool (SP) permits. Commercial building permits, and Electrical, Plumbing, and Mechanical permits for ALL project types (residential and commercial), within Libby city limits are issued directly by the Montana Department of Labor & Industry Building Codes Bureau, not the City. at 952 E. Spruce St., PO Box 1428, Libby, MT 59923. Phone: (406) 293-2731, email: building.inspector@cityoflibby.com. Office hours: City Hall, 952 E. Spruce St., Libby, MT 59923; general line (406) 293-2731, fax (406) 293-4090. Building Inspector Walter Snyder direct line (406) 291-9629, email building.inspector@cityoflibby.com.. Official information: https://cityoflibby.com/departments-services/building-inspector/.

Libby, Montana has adopted: Montana has a mandatory statewide building code administered by the Montana Department of Labor & Industry (DLI) Building Codes Bureau, amended by the Administrative Rules of Montana (ARM) Title 24, Chapter 301. Cities, counties, and towns may become 'certified' to locally administer permitting and inspection for all or part of the code; non-certified trades and non-certified project scopes in a partially-certified jurisdiction fall under direct state administration by the DLI Building Codes Bureau. Source: Montana DLI Building Codes Bureau, Certified City, County and Town Programs (bsd.dli.mt.gov/building-codes-permits).; Libby is a Montana DLI-certified jurisdiction for Building (B), RESIDENTIAL ONLY, plus Swimming Pool (SP), within city limits; certified official on file with DLI: Walter Snyder, (406) 293-2731. Verified directly against the DLI Building Codes Bureau's 'Montana Certified Local Government Program' roster PDF, updated 04/22/2026 (fetched and read directly, not taken on secondhand summary): 'Libby | B (residential only), SP | Walter Snyder | 293-2731 | City Limits'. This means COMMERCIAL building permits within Libby city limits, and Electrical/Plumbing/Mechanical permits for ALL project types (residential and commercial), are issued DIRECTLY by the Montana DLI Building Codes Bureau, not the City. Source: https://bsd.dli.mt.gov/_docs/building-codes-permits/certified-city.pdf; The City of Libby's own Building Inspector Department page and Building Permit Requirements packet list the codes referenced for construction in Libby as: the 2021 International Residential Code (IRC), 2021 International Energy Conservation Code (IECC), 2021 International Existing Building Code (IEBC), and 2021 International Swimming Pool and Spa Code (ISPSC) — consistent with a small residential-and-pool-only-certified jurisdiction enforcing the state-adopted editions rather than authoring independently amended code text. Source: City of Libby Building Inspector page, https://cityoflibby.com/departments-services/building-inspector/; Per the Montana DLI Building Codes Bureau's Current Codes page (statewide effective date June 11, 2022, applicable to all certified and state-enforced jurisdictions alike): 2021 IBC, 2021 IRC, 2021 IEBC, 2021 IMC, 2021 IFGC, 2021 IECC, 2021 ISPSC, 2021 UPC, 2020 NEC, 2017 ICC A117.1 Accessibility. Source: bsd.dli.mt.gov/building-codes-permits/current-codes; The City's own downloadable Building Permit Requirements and Application packet (cityoflibby.com) still references an older permit-fee appendix table sourced from the 2006 International Residential Code (Appendix L) and an inspection-record card citing the 2009 IBC/IRC — the City's packet has not been fully refreshed to reference 2021-edition appendix/section numbers even though the statewide code in force is now the 2021 edition; this is reported as an observed inconsistency in the City's own published document, not an invented fact.. Local amendments apply — see the Libby overview page for the full list.

It depends on the scope. The electrical interconnection permit is always issued by the Montana DLI Building Codes Bureau in Helena (Libby holds no electrical certification), using the statewide Residential Electrical Permit application with its $65 Alternative Energy Source add-on fee. For a RESIDENTIAL installation, the structural/racking Building Permit is issued by the City of Libby under its own residential Building certification. For a COMMERCIAL installation, the structural permit is instead issued by the state, since Libby's Building certification does not extend to commercial work.