State News


April 8: Transportation Funding Weekly Roundup

Four states express transportation funding concerns, while one organization proposes a solution to their state's transportation funding shortfall. Facing concerns that the state legislature will not reach a long-term transportation funding agreement this session, the...

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Feb. 29: State News Roundup

Current low fuel prices make it a “good time” to increase motor fuel taxes in order to fund transportation projects, according to a Ball State University Center for Business and Economic Research report released Feb. 15. The study concluded that businesses and...

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Idaho Ballot Measure Results



Fuel Taxes

Electric Vehicle Fee:

  • Plug-in vehicle owners: Annual fee of $140
  • Hybrid vehicle owners: Annual fee of $75

Excise Tax:

  • Liquefied natural gas, converted to diesel gallon equivalent (DGE), with 1 gallon of diesel equating to 6.06 pounds of LNG: 34.9 cents-per-DGE
  • Compressed natural gas (CNG), converted to GGE, with 1 gallon of gasoline equating to 5.66 pounds of CNG: 32 cents-per-GGE
  • Propane: 4.25 pounds equals 1 gallon, 23.2 cents-per-gallon
  • All other special fuels: state motor fuel tax rate (32 cents-per-gallon)

Fee/Tax in addition to Gas Excise Tax: Clean water tax (1 cent-per-gallon).

*Federal funding percentages are from an ARTBA analysis of FHWA Highway Statistics data, total ten year average 2004-2013 from tables SF-1 and SF-2. The percent is the ratio of federal aid reimbursements to the state and total state capital outlays and is indicative of the importance of the federal aid program to state capital spending for highways and bridges. Does not include local capital spending. Federal highway reimbursements are primarily used for capital outlays, including construction, right of way and engineering, but are also used for debt service for GARVEE bonds.