Electrical Permit (State Program) in Unincorporated Sheridan County, Wyoming

Unincorporated Sheridan County requires an electrical permit (state program) for: New electrical work may require a permit through the WY Dept. of Fire Prevention & Electrical Safety (WSFM) prior to construction and inspection by the state electrical inspector; 2026 NEC enforced statewide by the WSFM electrical program by default, effective July 1, 2026 per wsfm.wyo.gov/electrical-safety (2023 NEC was in effect before that date); Apply online via wyelectrician.imagetrendlicense.com; Sheridan has a regional WSFM inspector office. If your project isn't listed, confirm with Sheridan County Public Works Department (Planning / Building Official) at (307) 674-2920 or (307) 675-2420 before starting work.

In Unincorporated Sheridan County, the published Standard wiring permit is: $50.00 (temporary/90-day permit: $40.00). Additional published fees: Residential inspection fee — 100A service — $70.00 (includes the $50 permit); Residential inspection fee — 200A service — $120.00 (includes the $50 permit). These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Plan review for an electrical permit (state program) in Unincorporated Sheridan County typically runs 5–20 business days. This is an estimate, not a published figure — confirm current review times with Sheridan County Public Works Department (Planning / Building Official) at (307) 674-2920 or (307) 675-2420.

You'll need: Wyoming State Fire Marshal Electrical Wiring Permit Application. See the required-documents checklist on this page for details on each.

Apply through Sheridan County Public Works Department (Planning / Building Official) at 224 South Main Street, Suite 428, Sheridan, WY 82801. Phone: (307) 674-2920 or (307) 675-2420, email: publicworks@sheridancountywy.gov. Office hours: Mon–Fri 8:00am–5:00pm (Sheridan County general office hours per the sheridancountywy.gov site footer, re-confirmed 2026-07-16; not separately published as Public-Works-specific hours). Official information: https://www.sheridancountywy.gov/departments/planning/building_in_the_county/index.php.

Unincorporated Sheridan County, Wyoming has adopted: NO countywide building code / NO general building permit for private construction in unincorporated Sheridan County. Per the Wyoming State Fire Marshal's 'Local and State Jurisdictions' chart, Sheridan County (county-level row) is listed BLDG INSP/PR = STATE and ELEC INSP/PR = STATE — the county has NOT taken general countywide building-code delegation under W.S. § 35-9-121, so the State Fire Marshal / state program has building and electrical jurisdiction across most of unincorporated Sheridan County.; IMPORTANT NUANCE (confirmed on the county's own site): Sheridan County DOES have an adopted 'Building Standards, Sheridan County, Wyoming' rule (adopted Nov. 18, 1991; last amended May 16, 2023, filed as County Clerk doc. #2023-785780) that adopts the 2021 International Building Code, 2021 IRC, 2021 IMC, 2021 IFGC, 2021 IPC, 2021 International Fire Code, the 2022 National Electrical Code, and the Uniform Code for the Abatement of Dangerous Buildings — but ARTICLE I, Section 3 (Applicability) confirms this code applies ONLY within a mapped 'Sheridan County Building Standards Area' (a defined zone around/adjoining the City of Sheridan shown on the Appendix A Planning Map), PLUS specific legacy subdivisions the BOCC imposed permitting/inspection on before Dec. 5, 2006, all NEW subdivisions approved after Dec. 5, 2006, and any structure built under a Conditional Use Permit. It does NOT apply countywide.; Farms and ranches on 40 acres or more of deeded land are specifically EXEMPT from the Building Standards code entirely (Article I, Sec. 3(b)(1)), as are county hospitals, mines/oilfield/refinery facilities, and railway buildings.; Where the Building Standards DO apply (the mapped area / qualifying subdivisions / CUP structures): a building permit is required before construction of any building/structure valued over $5,000 (Article III, Sec. 1), enforced by the Sheridan County Building Official.; Where the Building Standards do NOT apply (the vast majority of unincorporated Sheridan County — rural and agricultural land outside the mapped area): there is no county building permit for private construction; a Zoning Permit (land-use/setback compliance, not a structural building-code permit) is still required countywide for new construction or change of use.; Electrical: wiring permits/inspections are issued by the Wyoming State Fire Marshal's Office — Dept. of Fire Prevention & Electrical Safety (Chief Electrical Inspector), not Sheridan County, per the county's own Zoning Permit application which directs applicants doing new electrical work to WSFM..

The Wyoming State Fire Marshal's Office — Dept. of Fire Prevention & Electrical Safety — not Sheridan County. Sheridan County's own Zoning Permit application form directs applicants doing new electrical work to the state program.