EV Charger Permit Requirements in Montana (2025)

If you're installing a Level 2 (240V) or DC Fast Charger in Montana, you need a state electrical permit from the Montana Department of Labor and Industry (DLI) Electrical Bureau before energizing the equipment. Level 1 chargers that plug into an existing outlet usually do not.

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

Yes, for any installation beyond plugging into an existing 120V outlet, a Montana state electrical permit is required.

Permits are issued by the Montana Department of Labor and Industry, Electrical Bureau. Montana is a state-administered electrical permitting state. Permits are not typically issued by city or county building departments.

A state-licensed electrical inspector must inspect the work before the charger is energized. Skipping the required inspection is a code violation. The Montana Department of Labor and Industry establishes the state's building and electrical permit authority.

Typical timelines run 1 to 3 weeks for a residential Level 2 installation and 3 to 8 weeks for commercial or DCFC projects, excluding utility coordination.

The 2025 Montana legislative session did not produce any new laws specific to EV charger permitting. Bills from that session, such as SB 534 (property tax) and SB 387 (e-bikes), addressed unrelated subjects. The existing DLI electrical permit framework governs EV charger installations.

Montana Electrical Permit Process: Step-by-Step

Step 1: Hire a Licensed Montana Electrical Contractor

Unless you qualify for the homeowner exemption, a contractor licensed by the Montana DLI must pull the permit and perform the work. Verify license status through the DLI online license lookup portal at boards.bsd.dli.mt.gov before signing a contract.

Step 2: Submit the Permit Application

Your contractor submits an electrical permit application to the Montana DLI Electrical Bureau, often through the DLI ePermitting system. Contact the Electrical Bureau to confirm current application procedures.

Step 3: Pay the Permit Fee

Fees are due at the time of application. Consult the DLI Electrical Bureau for the current fee schedule, as rates are subject to change.

Step 4: Rough-In Inspection (If Applicable)

If the project involves new wiring inside walls or other concealed locations, a rough-in inspection is required before walls are closed. The inspector verifies wire sizing, conduit fill, and panel connections.

Step 5: Install the Charger and Dedicated Circuit

The contractor installs the equipment according to the approved permit. The circuit must be dedicated to the EVSE.

Step 6: Final Inspection

A state-licensed electrical inspector verifies NEC compliance, proper grounding, GFCI protection, and equipment listing. The charger must not be energized before passing this inspection.

Step 7: Certificate of Inspection and Utility Notification

After a successful inspection, a certificate of inspection is issued. If the installation involves a service upgrade, solar, or battery storage, notify your utility. NorthWestern Energy and Montana-Dakota Utilities have their own interconnection processes that are separate from the DLI permit.

Homeowner Self-Permitting

Montana allows owner-occupants of single-family dwellings to pull their own electrical permits under specific conditions defined by the DLI Electrical Bureau. The homeowner must personally perform the work, which still requires inspection. Confirm eligibility and scope limitations with the DLI Electrical Bureau before beginning work.

Applicable Electrical Codes and Technical Standards in Montana

Montana's statewide electrical standard is the 2020 National Electrical Code (NEC). The DLI Electrical Bureau can provide information on any state-specific amendments.

NEC Article 625: EV Charging System Equipment

Article 625 of the NEC governs electric vehicle charging system equipment. Key requirements include:

• Dedicated branch circuit. The EVSE must be on its own circuit and not share power with other loads.
• GFCI protection. NEC 2020 Article 625.54 requires GFCI protection for all EV outlets installed in dwelling unit garages and outdoor locations. Inspectors verify this requirement.
• Ventilation. An inspector will evaluate ventilation needs based on the specific installation and equipment.
• Panel capacity. A Level 2 charger adds a significant electrical load. Your electrician must perform a load calculation per NEC Article 220 to confirm the existing service can support the addition. A service panel upgrade may be necessary.

DCFC Installations

DC Fast Chargers require high-amperage service and implicate multiple NEC articles, including Article 230 for service entrances. These projects require close coordination with the utility for a service upgrade.

Equipment Listing

All EVSE equipment must be listed by a nationally recognized testing laboratory, such as UL, to the appropriate standard (e.g., UL 2594). Unlisted equipment will not pass inspection.

ADA Requirements for Public and Commercial EVSE

Publicly accessible chargers must comply with the Americans with Disabilities Act (ADA) Standards for Accessible Design. This includes requirements for accessible routes, reach ranges, and parking stall dimensions. Local municipalities may have additional signage requirements.

Permit Fees and Timelines: Montana vs. Neighboring States

Montana's state-administered model provides a single point of contact for permitting and inspection. This centralized system differs from states where rules and processes vary by local jurisdiction.

Consult the DLI Electrical Bureau for the current fee schedule.

Utility Interconnection Timeline

The DLI permit timeline is separate from the utility service timeline. For a residential Level 2 charger on an existing service, utility notification may be sufficient. For a DCFC or any project requiring a service upgrade, budget an additional 2 to 6 weeks for utility coordination.

Expedited Review

Consult the DLI Electrical Bureau to determine if expedited review is available for your project.

Local Zoning and HOA Rules That May Also Apply

The state electrical permit does not override local zoning or private covenants.

No Statewide EV-Ready Building Code Mandate

As of 2025, Montana has not enacted a statewide EV-ready building code that would require new construction to include pre-wired EV circuits.

Municipal Zoning

Cities such as Billings, Missoula, and Bozeman may have zoning or site-plan requirements for commercial EVSE installations. Check with the relevant local planning department before designing a commercial project.

HOA Restrictions

Montana has not enacted a “right to charge” law that limits a Homeowners Association's ability to restrict EV charger installations. Review your HOA’s governing documents and seek board approval before installing a charger.

Historic Districts

If your property is in a local historic district, exterior equipment and conduit may require review by the local historic preservation commission. Check with your municipality's planning office.

Signage and ADA Parking

Public chargers require ADA-compliant parking stalls and signage. Local ordinances may specify signage standards beyond federal ADA minimums. Confirm requirements with the local planning or public works department.

Incentives and Funding Available to Montana EV Charger Installers

Federal Tax Credit: IRS Form 8911

The Alternative Fuel Vehicle Refueling Property Credit (30C) provides a federal tax credit for charger installation costs.

• Residential: 30% of the cost, up to $1,000.
• Commercial: 30% of the cost, up to $100,000, if the property is in an eligible census tract (low-income community or non-urban area).

The census tract requirement is a key factor for Montana businesses. Much of rural Montana qualifies as a non-urban area. Urban areas may not qualify. Use the IRS mapping tools or consult a tax professional to verify eligibility. The credit is available through 2032.

Montana NEVI Program

The Montana Department of Transportation (MDT) uses National Electric Vehicle Infrastructure (NEVI) Program funds to develop public DC fast charging corridors along I-90, I-15, and US-2. NEVI funds are for public charging projects, not residential installations. Contact MDT for information on current funding solicitations.

NorthWestern Energy Rebates

NorthWestern Energy may offer residential and commercial EVSE rebates. Verify program status and eligibility directly with NorthWestern Energy, as rebate programs can change. Contact them at 1-888-467-2669 or visit their website.

USDA REAP Grants

Rural small businesses and agricultural producers may be eligible for USDA Rural Energy for America Program (REAP) grants for EVSE installations. Contact your local USDA Rural Development office for details.

No Montana State EV Tax Credit

As of 2025, Montana does not offer a state-level tax credit or rebate for EV charger installation.

Next Steps: Who to Contact and How to Start Your Montana EV Charger Permit

1. Assess your panel capacity. Have a licensed electrician perform a load calculation to confirm your electrical service can support the new circuit.
2. Hire a licensed Montana electrical contractor. Verify their license at the DLI portal: boards.bsd.dli.mt.gov. If pursuing the homeowner exemption, confirm your eligibility with the DLI Electrical Bureau first.
3. Submit the DLI electrical permit application. Contact the Montana DLI Electrical Bureau for current application forms, fee schedules, and instructions. Visit dli.mt.gov for details.
4. Notify your utility. For NorthWestern Energy customers, call 1-888-467-2669. For Montana-Dakota Utilities customers, consult their website. This is critical for projects requiring a service upgrade.
5. Schedule inspections. Arrange for a rough-in inspection before closing walls (if needed) and a final inspection before energizing the charger.
6. Apply for the federal 30C tax credit. File IRS Form 8911 with your federal tax return. For commercial projects, confirm census tract eligibility per IRS guidance.

Timeline Expectations

• Residential Level 2: 1 to 3 weeks from permit application to final inspection, assuming no service upgrade is needed.
• Commercial or DCFC: 4 to 10 weeks, including utility coordination. Projects requiring a service upgrade will be on the longer end of this range.

Primary Contact

Montana Department of Labor and Industry, Electrical Bureau Website: dli.mt.gov (navigate to Building Codes Bureau / Electrical) Consult the DLI website for current contact information.

For commercial DCFC projects on NEVI corridors, contact the Montana Department of Transportation for siting coordination.