Natural Gas Laws and Incentives in Iowa

The list below contains summaries of all Iowa laws and incentives related to natural gas.

State Incentives

Alternative Fuel Production Tax Credits

The High Quality Jobs Program offers state tax incentives to business projects for the production of biomass or alternative fuels. Incentives may include an investment tax credit equal to a percentage of the qualifying investment, amortized over five years; a refund of state sales, service, or use taxes paid to contractors or subcontractors during construction; an increase of the state's refundable research activities credit; and a local property tax exemption of up to 100% of the value added to the property. For more information, refer to the High Quality Jobs Program website.

Point of Contact
Business Finance Program Coordinator
Iowa Economic Development Authority
Phone: (515) 348-6161
businessfinance@iowada.com

Diesel Emission Reduction Project Funding

The Iowa Department of Transportation (IowaDOT) is accepting applications for funding of medium- and heavy-duty on-road new diesel or alternative fuel vehicles or engine repowers and replacements, as well as off-road repowers and replacements. Both government and non-government entities that own and operate diesel fleets and equipment are eligible for funding. Vehicles and equipment that qualify for replacement or repower include:

  • Model Year (MY) 2009 or older Class 4-8 school buses, shuttle buses, and transit buses;
  • MY 1992-2009 Class 4-7 local freight trucks;
  • MY 1992-2009 Class 8 drayage trucks; and
  • Freight switchers, ferries and tugs, marine vessel shorepower, airport ground equipment, and forklifts and port cargo handling equipment.
This grant program is funded by Iowa's portion of the Volkswagen Environmental Mitigation Trust. For more information, including how to apply, see the IowaDOT Volkswagen Clean Air Act Partial Settlements website.

Idle Reduction and Natural Gas Vehicle (NGV) Weight Exemption

Any motor vehicle equipped with an auxiliary power unit (APU) or other idle reduction technology may exceed the gross, single axle, tandem axle, or bridge formula weight limits by up to 550 pounds (lbs.) to compensate for the weight of the technology. To be eligible for the weight exemption, the vehicle operator must be able to provide written proof or certification of the weight of the APU or idle reduction technology, and demonstrate or certify that the technology is fully functional at all times.

Furthermore, NGVs may exceed the weight limits by an amount equal to the difference of the weight of the natural gas tank and fueling system and the weight of a comparable diesel tank and fueling system. The NGV must not exceed a maximum gross vehicle weight of 82,000 lbs. (Reference Iowa Code 321.463)

Laws and Regulations

Alternative Fuel Tax

Compressed natural gas used as a special motor fuel is subject to the state fuel excise tax of $0.31 per gasoline gallon equivalent, measured at 5.66 pounds (lbs.) or 126.67 cubic feet at a base temperature of 60 degrees Fahrenheit and a pressure of 14.73 lbs. per square inch. Liquefied natural gas is subject to the excise tax of $0.325 per diesel gallon equivalent, measured at 6.06 lbs. Liquefied petroleum gas (propane) is subject to the excise tax of $0.30 per gallon. E85 is subject to the excise tax of $0.290 per gallon. (Reference Iowa Code 452A.2 and 452A.86)

Alternative Fuel Vehicle (AFV) Conversion Registration

When a motor vehicle is modified to use a different fuel type or more than one type of fuel, the vehicle's registered owner must notify the county treasurer of the new fuel type or alternative fuel types within 30 days. If the vehicle uses, or may use, a special fuel, the county treasurer will issue a special fuel identification sticker. (Reference Iowa Code 321.41)

Alternative Fuel Vehicle Acquisition Requirements

At least 10% of new light-duty vehicles purchased by institutions under the control of the state fleet director, including the Iowa Department of Transportation, Board of Directors of Community Colleges, Board of Regents, Commission for the Blind, and Department of Corrections must be capable of operating on alternative fuels. Vehicles and trucks purchased and directly used for law enforcement and off-road maintenance work are exempt from this requirement. (Reference Iowa Code 8A.362, 216B.3, 260C.19A, 262.25A, 307.21 and 904.312A)

More Laws and Incentives

To find laws and incentives for other alternative fuels and advanced vehicles, search all laws and incentives.