Laws and rules: Prorate and fuel tax

Learn the current prorate and fuel tax laws and rules, and view rulemaking activity.

List of rulemaking activity

Rulemaking is how we create or change rules. See the latest rulemaking for prorate and fuel tax.

Current laws and rules

Fuel tax laws and rules

IFTA laws and rules

IRP (Prorate) laws and rules

General laws and rules

Explanation of abbreviations

  • RCW—Revised Code of Washington (Washington laws)
  • WAC—Washington Administrative Code (Washington agency regulations)

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