WA HB2404

Reduces the special fuel (diesel) tax rate to July 1, 2016 levels by removing the 6 cents per gallon increase and 3 cents per gallon special fuel increase that took effect July 1, 2025

Eliminates the planned additional 3 cents per gallon special fuel tax increase that was scheduled for July 1, 2027

Removes the 2% annual inflation adjustment for special fuel taxes that was set to begin July 1, 2028, while retaining the 2% annual adjustment for regular fuel taxes

Adjusts the annual license fee calculation for vehicles using liquefied natural gas, compressed natural gas, or propane to use the 2024 cumulative fuel tax rate for the 2026 registration year

Amends RCW 82.38.030 and 82.38.075 to implement these tax reductions for diesel and other special fuels used in food production, freight, and transportation