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Juneau State Office Mailing Address Update

All mail sent to the DEC office in Juneau through the U.S. Postal Service must be addressed to P.O. Box 111800, Juneau, AK, 99811. Beginning October 1, all mail addressed to our Willoughby Avenue address will not be delivered and will be returned to sender by the Post Office. This change only impacts incoming mail to the Juneau office.

Ultra-Low Sulfur Diesel (ULSD)

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

Ultra-low Sulfur Diesel Links:

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 (Select image for larger view)

Fuel Distribution map Fuel Distribution Map