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
- Motor Vehicle Fuel Tax (Chapter 82.36 RCW)
- Special Fuel Tax (Chapter 82.38 RCW)
- Aircraft Fuel Tax (Chapter 82.42 RCW)
- Fuel Tax Rules and Regulations (Chapter 308-77 WAC)
- Aircraft Fuel Tax (Chapter 308-78 WAC)
IFTA laws and rules
- Multistate Motor Fuel Tax Agreement (Chapter 82.41 RCW)
IRP (Prorate) laws and rules
- Reciprocal or Proportional Registration of Vehicles (Chapter 46.85 RCW)
- Proportional Registration (Chapter 46.87 RCW)
- Reciprocity and Proration (Chapter 308-91 WAC)
General laws and rules
- Administrative Procedure Act (Chapter 34.05 RCW)
Explanation of abbreviations
- RCW—Revised Code of Washington (Washington laws)
- WAC—Washington Administrative Code (Washington agency regulations)