- Revised Code of Washington (RCW): Acompilation of all permanent laws now in force.
- Washington State Constitution:The plan for the operation of Washington State government.
- Washington Administrative Code (WAC):Regulations of executive branch agencies are issued by authority of statutes.
- Washington State Register (WSR): The Washington State Register is a biweekly publication of notices of proposed and expedited rules, emergency and permanently adopted rules, public meetings, requests for public input, notices of rules review, executive orders of the governor, court rules, summary of attorney general opinions, juvenile disposition standards, the state maximum interest rate, an index, and WAC to WSR table.