Do I Need a Permit to Install an EV Charger in Wyoming?
Quick Answer
Level 2 (240V) chargers yes. Level 1 (120V plug-in) no.
Wyoming-specific rules
In Wyoming, EV-charger electrical work is enforced statewide by default under the National Electrical Code by the State Fire Marshal's Chief Electrical Inspector (W.S. § 35-9-119), except in localities granted their own certified electrical authority. Wyoming has no statewide building code (local enforcement is opt-in under W.S. § 35-9-121) — confirm who issues your electrical permit.
Sources: Wyoming State Fire Marshal — statewide electrical enforcement (W.S. § 35-9-119)
Level 1 vs Level 2
Level 1 chargers plug into a standard 120V outlet and do not require a permit. Level 2 chargers require a dedicated 240V circuit (usually 40-50 amps) and always require an electrical permit. Level 2 is what most EV owners install for practical daily charging speeds.
Panel Capacity
A Level 2 EV charger draws 40A and requires a 50A breaker. Many older homes have 100A or 150A panels that may not have capacity. If your panel is full, you'll need a sub-panel or panel upgrade ($1,500-$3,000 additional). An electrician can do a load calculation to determine if your current panel can handle it.
Installation Location
Most home EV chargers are installed in the garage, near the electrical panel. Longer runs from the panel to the charger increase wire cost. Outdoor installations require a weatherproof-rated charger (NEMA 4 or 4X enclosure).
Rebates and Incentives
Many utilities offer rebates for residential EV charger installations. Federal tax credits may also apply. Check current programs with your utility before installation — rebates often require pre-approval and may have specific equipment requirements.
Bottom Line
Level 2 chargers need an electrical permit ($40-$75). Fast approval, one inspection. Check for utility rebates first.