Ultra Low Sulfur Diesel (ULSD) Home

Urban areas of Alaska are required to use 15 parts per million (ppm) sulfur standard diesel fuel (ULSD) for all diesel powered:

  • Highway/on-road vehicles (automobiles and trucks)
  • Non-road/off-road equipment (graders, bulldozers, backhoes, etc.)
  • Locomotive and Marine engines

Rural areas of Alaska are required to use 15 ppm sulfur standard diesel fuel (ULSD) for all diesel powered:

  • Highway/on-road vehicles (automobiles and trucks)
  • Non-road/off-road equipments (graders, bulldozers, backhoes, etc.)
  • Locomotive and Marine engines

Click here to see the Federal Implementation Dates for On-road, Non-road, Locomotive and Marine diesel fuels for all areas of Alaska.

Click here for the summary of Dates and Federal Regulations on Stationary Compression Ignition Internal Combustion Engines (CI ICE)

Click here for ULSD dispenser label requirements

Frequently Asked Questions on Ultra Low Sulfur Diesel:

The map below shows Rural (areas not accessible by Federal Aid Highway System (FAHS) and Urban areas of Alaska.

Alaska Fuel Distribution
(Click Image for larger view)

Fuel Distribution Map