Wyoming Laws and Incentives

Listed below are the summaries of all current Wyoming laws, incentives, regulations, funding opportunities, and other initiatives related to alternative fuels and vehicles, advanced technologies, or air quality. You can go directly to summaries of:

State Incentives

Diesel Emission Reduction Project Funding

The Wyoming Department of Environmental Quality (DEQ) offers grants for nitrogen oxide emissions reduction projects. Funding is for heavy-duty on-road new diesel or alternative fuel repowers and replacements, as well as off-road repowers and replacements. Both government and non-government entities are eligible for funding. Vehicles that qualify for replacement or repower include:

  • Model Year (MY) 1992-2009 Class 8 local freight trucks and port drayage trucks;
  • MY 1992-2009 Class 4-7 local freight trucks;
  • MY 2009 or older Class 4-8 school buses, shuttle buses, and transit buses;
  • Airport ground support equipment;
  • Light-duty zero emission vehicle supply equipment; and
  • Diesel Emission Reduction Act projects.
This grant program is funded by Wyoming's portion of the Volkswagen Environmental Mitigation Trust. For more information, including how to apply, see the Wyoming DEQ’S Volkswagen Settlement website.

Alternative Fuel Export Tax Exemption

Alternative fuel sold for use in motor vehicles and intended for export from the state by a licensed alternative fuel exporter is exempt from the alternative fuel license tax. Any person exporting alternative fuel for which the license tax has been paid is eligible for a refund of the license tax paid. The exporter must submit the refund request within one year of the date of fuel purchase. (Reference Wyoming Statutes 39-17-301, 39-17-305, and 39-17-309(c))

Natural Gas Infrastructure Loans

The Wyoming Business Council (Council) can issue loans to businesses for the cost of the engineering, design, real property, equipment, and labor necessary to install a natural gas fueling station. The loan may cover 75% of the total project cost, up to $1 million. Businesses receiving a loan do not have to pay interest or principal payments for the first two years of the loan term. When considering loan applications, the Council will consider existing fueling infrastructure and the volume of private and government fleet vehicles in the geographic area. For more information on loan requirements and applications, see the Council's Loan Programs website. (Reference Wyoming Statutes 9-12-301 through 9-12-304)

Utility/Private Incentives

Electric Vehicle Supply Equipment (EVSE) Rebate - Yellowstone-Teton Clean Cities (YTCC)

YTCC offers a rebate of $5,000 toward the purchase of publicly accessible EVSE. Eligible entities include businesses and municipalities in the communities surrounding Grand Teton National Park and Yellowstone National Park. Rebates are available on a first-come, first-served basis. For more information, see the YTCC Vehicle and Infrastructure Rebates website.

Laws and Regulations

Plug-in Electric Vehicle (PEV) Decal Fee

Owners of PEVs must pay an annual decal fee of $200. Multipurpose vehicles and motorcycles are exempt. Multipurpose vehicles are defined as having at least four wheels, an unladen weight of at least 300 pounds (lbs.) but less than 3,000 lbs., a permanent upright seat or saddle for the driver which is mounted at least 24 inches from the ground, and an identifying number (Reference House Bill 0144, 2021, and Wyoming Statutes 31-3-102 (a)(xxiii), 31-1-101(a)(xv)(M), and 39-17-301 (a))

Regional Electric Vehicle (REV) West Plan

Wyoming joined Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, and Utah (Signatory States) in signing the REV West memorandum of understanding (MOU) to create an Intermountain West Electric Vehicle (EV) Corridor that will make it possible to seamlessly drive an EV across the Signatory States' major transportation corridors.

In 2019, the Signatory States signed a revised REV West MOU to update their EV corridor goals based on progress to date. Signatory States are committed to:
  • Educate consumers and fleet owners to raise EV awareness, reduce range anxiety, and increase EV adoption;
  • Coordinate on EV charging station locations to achieve a consistent user experience across Signatory States;
  • Use and promote the REV West Voluntary Minimum Standards for EV charging stations and explore opportunities for implementing the standards in Signatory States;
  • Identify and develop opportunities to incorporate EV charging stations into planning and development processes such as building codes, metering policies, and renewable energy generation projects;
  • Encourage EV manufacturers to stock and market a wide variety of EVs within the Signatory States;
  • Identify, respond to, and collaborate on funding opportunities to support the development of the plan; and
  • Support the build-out of direct current (DC) fast charging stations along EV corridors through investments, partnerships, and other mechanisms.
The Signatory States maintain a coordination group composed of senior leadership from each state who meet on a quarterly basis and report on the above actions. For more information, see the REV West website.

Alternative Fuel Tax Rate

A license tax of $0.24 per gasoline gallon equivalent (GGE) or diesel gallon equivalent (DGE) is collected on all alternative fuel used, sold, or distributed for sale or use in Wyoming. Alternative fuels include compressed natural gas (CNG), liquefied natural gas (LNG), propane, electricity, and renewable diesel. For taxation purposes, one GGE of CNG is equal to 5.66 pounds (lbs.), one DGE of LNG is equal to 6.06 lbs., one GGE of propane is equal to 1.35 gallons, and one GGE of electricity is equal to 33.56 kilowatt-hours. For more information, refer to the Wyoming Department of Transportation Tax Rates website. (Reference Wyoming Statutes 39-17-104, 39-17-204, 39-17-301. 39-17-303, and 39-17-304)

Alternative Fuel License Fee

Each alternative fuel supplier, refiner, distributor, terminal operator, importer or exporter of alternative fuel used in motor vehicles must obtain an annual license from the Wyoming Department of Transportation to conduct business in the state. The fee for each type of license is $25. (Reference Wyoming Statute 39-17-306)

Alternative Fuel Definition

Alternative fuels are defined as pure methanol, ethanol and other blends of at least 85% alcohol, natural gas, propane, coal-derived liquid fuels, hydrogen, electricity, pure biodiesel, renewable diesel, fuels other than alcohol that are derived from biological materials, and P-series fuels. Biodiesel is defined as mono-alkyl esters of long chain fatty acids derived from vegetable oils or animal fats that meets current ASTM biodiesel standards. (Reference Wyoming Statutes 39-17-301)

Compressed Natural Gas (CNG) Deregulation

A non-utility business that sells CNG for use as a motor vehicle fuel is not regulated as a public utility. (Reference Wyoming Statutes 37-1-101)

Idle Reduction Requirement

A driver may not idle a vehicle on a roadway outside a business or residential district when it is practical to stop and park the vehicle. A driver may not leave a vehicle unattended without first stopping the engine and removing the key from the ignition. (Reference Wyoming Statutes 31-5-505 and 31-5-509)