EV Charger Permit Requirements in Wyoming (2025)

Wyoming requires an electrical permit for any Level 2 (240V) or DC Fast Charger installation. Permits are issued by local jurisdictions, and fees vary. In most cases, a licensed electrician must obtain the permit.

Quick Answer: Do You Need a Permit for an EV Charger in Wyoming?

Yes, with one narrow exception.

Level 1 (120V, standard outlet): No separate permit is required if you are plugging into an existing, code-compliant 120V circuit. If you are adding a new circuit to support a dedicated Level 1 outlet, that new circuit triggers an electrical permit.

Level 2 (240V, 30–50A): An electrical permit is required in every Wyoming jurisdiction. This follows from Wyoming's adoption of the National Electrical Code (NEC) under the Wyoming Fire Prevention and Electrical Safety Act (Wyo. Stat. § 35-9-101 et seq.), which mandates permits for new electrical circuits and equipment installations of this type.

DC Fast Charger (DCFC, 480V+): A full permit package is required, including an electrical permit, plan review, and often a building permit. Utility coordination is also required for new service.

Who pulls the permit: A Wyoming-licensed electrical contractor in most jurisdictions. Homeowners may self-permit for single-family residential work in some counties, but you must confirm this with your local Authority Having Jurisdiction (AHJ) before starting.

Inspection: Required before the charger is energized. Skipping inspection is a code violation under Wyo. Stat. § 35-9-101 et seq.

Timeline at a glance:

Wyoming Electrical Code and Statutory Framework

Authority for EV charger permitting flows from state statute to local building departments.

State Statutory Basis

The Wyoming Fire Prevention and Electrical Safety Act (Wyo. Stat. § 35-9-101 through § 35-9-131) establishes the statewide framework for electrical safety, licensing, and code adoption. The Wyoming Department of Fire Prevention and Electrical Safety (DFPES) administers this statute and oversees statewide electrical licensing and code enforcement.

Under this framework, electrical work, including EVSE installation, requires a permit and inspection. The statute does not enumerate EV chargers by name; the requirement flows from the broader mandate that all new electrical circuits and equipment meet adopted code standards and receive inspection before energization. Consult Wyoming DFPES for current administrative rule citations under their Chapter 1, Electrical Installations.

NEC Adoption and Article 625

Wyoming adopts the National Electrical Code statewide. The specific edition currently enforced by Wyoming DFPES should be confirmed directly with the department, as states cycle through the 2017, 2020, and 2023 editions on different schedules. Consult Wyoming DFPES at (307) 777-7288 or their official portal to confirm the current adopted edition before submitting permit documents.

Regardless of edition, NEC Article 625 governs electric vehicle charging system equipment. It covers circuit requirements, EVSE listing standards, ventilation, and installation methods. NEC 625.2 defines the equipment scope; NEC 625.5 requires that all EVSE be listed by a Nationally Recognized Testing Laboratory (NRTL) such as UL or ETL. An unlisted charger will fail inspection.

Local Amendments and AHJ Authority

Local jurisdictions, such as cities and counties, may adopt amendments to the state-adopted NEC. Cheyenne, Casper, Laramie, and Gillette each operate their own building departments and may have local modifications. Always contact your local building department first. Requirements in Laramie County may differ from those in Campbell County.

Commercial Installations: Additional Codes

Commercial EVSE installations, particularly DCFC stations, may also trigger requirements under the International Building Code (IBC) and International Fire Code (IFC) as locally adopted. Structural permits may be required for canopy or pedestal foundations. Confirm with your local building department whether a combined permit application is needed.

Permit Fees, Timelines, and Inspection Requirements by Charger Type

Wyoming has no statewide uniform permit fee schedule. Fees are set by each local jurisdiction and are typically calculated based on project valuation or a flat fee schedule. The ranges below are representative based on typical Wyoming municipal fee structures. Verify current fees directly with your local building department before budgeting.

Fee lookup by jurisdiction:

• Cheyenne: Cheyenne Building Division, (307) 637-6265
• Casper: Casper Development Services, (307) 235-8475
• Laramie: Laramie Building Department, (307) 721-5230
• Gillette: Gillette Planning and Development, (307) 686-5222

Fees listed above are representative ranges only. Confirm current schedules directly with each jurisdiction, as fees change and the figures above cannot be guaranteed.

Inspection Stages

Rough-in inspection: Required before walls, conduit, or trenching is closed. The inspector verifies wire sizing, conduit fill, grounding, and circuit protection. Do not cover work before this inspection passes.

Final inspection: Required after the EVSE unit is mounted and wired but before it is energized. The inspector verifies the equipment listing label, proper terminations, GFCI protection where required by NEC Article 625, and signage for commercial installations.

Wyoming DFPES inspection requirements for electrical installations apply statewide. Consult DFPES if your local jurisdiction lacks a certified electrical inspector, as the state may provide inspection services in some rural areas.

Contractor Licensing Requirements in Wyoming

Licensed Contractor Requirement

Wyoming requires electrical contractors to hold a state-issued Electrical Contractor License to perform and permit electrical work, including EVSE installation, on commercial properties (Wyo. Stat. § 35-9-116). Individual electricians performing the work must hold a Journeyman or Master Electrician license issued by Wyoming DFPES.

For commercial DCFC installations, this requirement is mandatory. Hiring an unlicensed contractor is a code violation and may void commercial property insurance.

Verify current license categories, application requirements, and fees through the Wyoming DFPES licensing portal or by calling (307) 777-7288.

Homeowner Self-Permit Eligibility

Wyoming allows owner-occupants of single-family residences to perform their own electrical work and self-permit in many jurisdictions. This is not universal. Some Wyoming cities and counties require a licensed contractor regardless of owner-occupancy status.

Before starting work, call your local building department and ask two specific questions:

1. Does your jurisdiction allow homeowner self-permitting for electrical work?
2. Does that exemption apply to 240V circuit additions for EV charger installation?

Even with a self-permit, the work must pass inspection. A homeowner who installs without a permit may face disclosure obligations when selling the home.

EVSE Equipment Listing Requirement

The charger unit itself must be listed by an NRTL (NEC 625.2 and 625.5). UL-listed and ETL-listed units are the most common. Do not purchase a charger that lacks a recognized listing mark. The inspector will check for this label, and an unlisted unit will result in a failed final inspection.

Utility Interconnection and Net Metering Considerations

Service Upgrades for DCFC

A commercial DCFC installation at 480V typically requires a new utility service entrance or a transformer upgrade. Rocky Mountain Power (operating as PacifiCorp) serves the majority of Wyoming. For large commercial service requests, contact their Commercial Solutions team directly. Rocky Mountain Power customer service: 1-888-221-7070. Ask about their process for new commercial service or service upgrades for EV charging stations. Consult Rocky Mountain Power for their current interconnection tariff schedule, as tariff designations are subject to revision.

The Wyoming Public Service Commission (PSC) regulates electric utilities operating in Wyoming and sets the framework for rate tariffs applicable to EV charging stations. To understand which rate tariff applies to a DCFC load, contact the PSC at (307) 777-7427.

Net Metering and Solar-Paired EV Charging

Wyoming has a net metering statute (Wyo. Stat. § 37-2-301) that governs the interconnection of customer-owned generation, including rooftop solar, to the utility grid. If you are pairing an EV charger with a solar installation, the solar system requires a separate interconnection application to your serving utility. The building permit for the EV charger and the interconnection application for the solar system are two distinct processes that run in parallel.

Some Wyoming utilities offer EV-specific time-of-use (TOU) rate tariffs. Enrolling in a TOU rate can reduce charging costs if you charge during off-peak hours. Ask your utility whether a TOU option is available.

Separate Metering for Commercial and Multi-Family

Multi-family property owners and commercial operators should evaluate whether a dedicated utility meter for the EVSE is necessary. A separate meter simplifies cost allocation, enables access to commercial EV rate tariffs, and may be required by the utility for certain installation configurations. Confirm requirements with Rocky Mountain Power or your local electric cooperative.

NEVI Program Requirements

Wyoming DOT received federal National Electric Vehicle Infrastructure (NEVI) Formula Program funds through the Federal Highway Administration. Installations on NEVI-designated Alternative Fuel Corridors in Wyoming must meet federal standards under 23 CFR Part 680. Key federal requirements include a minimum 150kW output per port, open payment systems, and 97% uptime. These requirements are in addition to state and local permit requirements. Contact Wyoming DOT for current corridor designations and compliance requirements before planning a NEVI-funded installation.

Recent Regulatory Activity and Legislative Developments

HB 275 (2023): EV Metering Bill, Died in Committee

Wyoming HB 275 (2023), "Highway maintenance equity-electric vehicle metering," addressed road-use fee equity for EV drivers. It died in committee and did not change any permitting rules or EV charging regulations (OpenStates record, Wyoming HB 275, 2023). No road-use charge or EV metering rule was enacted through this bill.

No Permit Streamlining Law in Wyoming

As of early 2025, Wyoming has not enacted an expedited EV charger permit law. Local jurisdictions retain full discretion over their permitting timelines, fee structures, and application requirements. There is no state mandate requiring local governments to approve EV charger permits within a specific timeframe. Monitor the Wyoming Legislature's future sessions for any new EV infrastructure or permitting bills.

NEC 2023 and Bidirectional Charging

The 2023 edition of the NEC includes updated provisions in Article 625 addressing bidirectional charging, including vehicle-to-grid (V2G) and vehicle-to-home (V2H) systems. Confirm with Wyoming DFPES whether Wyoming has adopted NEC 2023 before planning a bidirectional installation, as V2G-capable equipment has specific listing and installation requirements.

Federal NEVI Rule

The FHWA NEVI Final Rule (23 CFR Part 680) imposes federal standards on publicly funded corridor charging stations. These requirements are enforced through Wyoming DOT as the NEVI program administrator.

Next Steps: How to Get Your EV Charger Permit in Wyoming

Follow these steps to avoid common project delays.

Step 1: Identify your installation type. Determine if you are installing Level 1, Level 2, or DCFC, and whether the location is residential, multi-family, or commercial. This dictates which permits apply and who can obtain them.

Step 2: Contact your local building department. Confirm permit requirements, the current fee schedule, any local NEC amendments, and whether homeowner self-permitting is allowed for your project type.

• Cheyenne Building Division: (307) 637-6265
• Casper Development Services: (307) 235-8475
• Laramie Building Department: (307) 721-5230
• Gillette Planning and Development: (307) 686-5222
• For other jurisdictions, contact your city or county directly.

Step 3: Hire a Wyoming-licensed electrical contractor, or confirm self-permit eligibility. Verify contractor license status through Wyoming DFPES. If self-permitting, get written confirmation from your AHJ before starting work.

Step 4: Prepare and submit your permit application. Most Wyoming jurisdictions require a load calculation showing your panel has capacity for the new circuit, a site plan showing the charger location and conduit routing, and an equipment cut sheet confirming the EVSE is UL-listed or ETL-listed. Commercial projects also need a one-line electrical diagram.

Step 5: Schedule inspections. Book the rough-in inspection before covering any work. Book the final inspection after the unit is mounted and wired but before energizing. Do not energize the charger before the final inspection passes.

Step 6: Contact your utility for commercial or solar-paired projects. Rocky Mountain Power: 1-888-221-7070. For solar, request the interconnection application separately. For DCFC service upgrades, ask for the Commercial Solutions team and allow additional lead time for transformer upgrades.

Step 7: For NEVI-funded stations, contact Wyoming DOT. Confirm your station's location against current NEVI corridor designations and review federal compliance requirements under 23 CFR Part 680 before finalizing equipment specifications.

Wyoming DFPES contact: Wyoming Department of Fire Prevention and Electrical Safety 122 W. 25th St., Cheyenne, WY 82002 Phone: (307) 777-7288 Consult the DFPES official contact page to verify current information before submitting applications.

Wyoming PSC contact for utility rate questions: Wyoming Public Service Commission Phone: (307) 777-7427 Consult the PSC official contact page for current information.