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EV Charger / EVSE Permit in Unincorporated Sweetwater County, Wyoming

Sweetwater County has not taken delegated electrical-enforcement authority — electrical wiring permits in unincorporated Sweetwater County are issued by the Wyoming State Fire Marshal's Office (WSFM), Dept. of Fire Prevention & Electrical Safety, confirmed by the WSFM "Local and State Jurisdictions" chart (Sweetwater County ELEC INSP/PR = S/S) and the county's own Land Use page, which links out to the state electrical wiring permit as an external resource. An EV charger/EVSE installation therefore requires a State of Wyoming Electrical Wiring Permit through WSFM, not a county permit. WSFM publishes no distinct EV charger/EVSE fee line; a residential EVSE circuit is billed under the same standard wiring permit and residential service inspection fee structure used for all electrical work, under the 2026 NEC (effective July 1, 2026).

Verified 2026-07-20 · Source

When you need this permit

  • State of Wyoming Electrical Wiring Permit (WSFM) required for EV charger/EVSE circuit installation in unincorporated Sweetwater County — apply through the state's online portal (wyelectrician.imagetrendlicense.com) or a regional inspector office (nearest listed regional offices include Green River)
  • Do not contact Sweetwater County Land Use for electrical permits — this is a state program
  • Installation must comply with the 2026 NEC as enforced statewide by WSFM effective July 1, 2026
  • No distinct EV charger/EVSE fee line, expedited timeline, or SolarAPP+-style instant-permitting platform was found published by WSFM as of this review

Required documents

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    Fee schedule

    Standard wiring permit$40 for temporary/90-day permit; waived if an inspection is requested and paid for. Same base permit fee documented on this jurisdiction's Electrical Wiring Permit entry; no distinct EV charger/EVSE fee line is published.
    $50
    Residential inspection, 100A (typical for a Level 2 EV charger circuit)Includes the $50 permit fee.
    $70
    Residential inspection, 200AIncludes the $50 permit fee — applicable if the EV charger installation requires a larger service upgrade.
    $120

    Review timeline

    Plan reviewTypical estimate — confirm current times with the Unincorporated Sweetwater County building department
    ~5–20 business days

    How long did your EV Charger / EVSE Permit permit actually take in Unincorporated Sweetwater County?

    Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

    Inspection process

    1. 1

      Residential Electrical Inspection

      EVSE circuit, breaker, disconnect, and equipment mounting inspected by the WSFM regional inspector

    Tips

    • Sweetwater County has not taken delegated electrical authority — EV charger/EVSE installations go through the Wyoming State Fire Marshal, not the county Land Use department.
    • Nearest regional WSFM inspector office is in Green River — apply through the state online portal rather than the county.

    Frequently asked questions

    Unincorporated Sweetwater County requires an ev charger / evse permit for: State of Wyoming Electrical Wiring Permit (WSFM) required for EV charger/EVSE circuit installation in unincorporated Sweetwater County — apply through the state's online portal (wyelectrician.imagetrendlicense.com) or a regional inspector office (nearest listed regional offices include Green River); Do not contact Sweetwater County Land Use for electrical permits — this is a state program; Installation must comply with the 2026 NEC as enforced statewide by WSFM effective July 1, 2026; No distinct EV charger/EVSE fee line, expedited timeline, or SolarAPP+-style instant-permitting platform was found published by WSFM as of this review. If your project isn't listed, confirm with Sweetwater County Land Use Department (Planning & Zoning) at (307) 872-3914 before starting work.

    In Unincorporated Sweetwater County, the published Standard wiring permit is: $50. Additional published fees: Residential inspection, 100A (typical for a Level 2 EV charger circuit) — $70; Residential inspection, 200A — $120. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

    Plan review for an ev charger / evse permit in Unincorporated Sweetwater County typically runs 5–20 business days. This is an estimate, not a published figure — confirm current review times with Sweetwater County Land Use Department (Planning & Zoning) at (307) 872-3914.

    Unincorporated Sweetwater County requires 1 inspection(s) for an ev charger / evse permit, in order: Residential Electrical Inspection. Schedule each through Sweetwater County Land Use Department (Planning & Zoning) ((307) 872-3914).

    Apply through Sweetwater County Land Use Department (Planning & Zoning) at 80 W. Flaming Gorge Way, Suite 23, Green River, WY 82935. Phone: (307) 872-3914, email: binghame@sweetwatercountywy.gov. Office hours: Monday - Friday, 8:00 am - 5:00 pm. Official information: https://www.sweetwatercountywy.gov/departments/land_use/index.php.

    Unincorporated Sweetwater County, Wyoming has adopted: No countywide building code and no county building permit for private construction. Sweetwater County has not taken delegated building-code enforcement authority under Wyoming Statute 35-9-121; the Wyoming Dept. of Fire Prevention & Electrical Safety's "Local and State Jurisdictions" chart lists Sweetwater County BLDG INSP/PR as state (S/S), meaning the State Fire Marshal, not the county, holds building-code jurisdiction (https://wsfm.wyo.gov/electrical-safety, chart updated 7/7/2026, re-verified 2026-07-16 — Sweetwater County row still reads Fire Insp L / Fire PR S / Bldg Insp S / Bldg PR S / Elec Insp S / Elec PR S; Rock Springs (L across the board) and Green River (Bldg Insp L, all else S) are separate incorporated-city rows and do not apply to this unincorporated-county file).; Confirmed independently on the county's own site: the Land Use Department's page states construction in unincorporated Sweetwater County requires an approved ZONING permit (not an IBC/IRC building-code permit) — 'All residential, commercial, industrial and mineral construction and use in the unincorporated areas of Sweetwater County requires an approved zoning permit' (https://www.sweetwatercountywy.gov/departments/land_use/index.php).; The county's own Development Codes page lists only land-use/zoning instruments — the 2015 Zoning Resolution, Growth Management Plan, Subdivision Regulations, Comprehensive Plan, and Federal Lands and Resources Plan — with no adopted IBC/IRC/NEC building-code edition (https://www.sweetwatercountywy.gov/departments/land_use/development_codes.php)..

    No — unincorporated Sweetwater County has no local electrical permitting authority. EV charger/EVSE installations require a State of Wyoming Electrical Wiring Permit through the WY State Fire Marshal's Office. There is no distinct EV charger fee; a typical residential installation is billed under the standard wiring permit ($50) plus a service inspection fee ($70 for 100A). Source: WY State Fire Marshal — Electrical Safety (https://wsfm.wyo.gov/electrical-safety).

    Sources & verification

    Verified against official sources. Last reviewed 2026-07-20.

    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 Unincorporated Sweetwater County building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

    Other permits in Unincorporated Sweetwater County

    Zoning/Construction Permit (Land Use) — not a building-code permitSeptic / Small Wastewater System PermitCounty Access / Driveway Permit (Public Works — Engineering)Electrical Wiring Permit (State Program)Solar Energy System — On-Site (Rooftop/Ground-Mount PV) — Zoning PermitSign PermitFire Protection System (Fire Alarm / Fire Sprinkler) Plan Review — State ProgramChange of Use / Establishment Permit (Zoning — No Construction)

    EV Charger / EVSE Permit in other cities

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