Law of Washington (state)  The law of Washington consists of several levels, including constitutional, statutory, regulatory and case law, as well as local ordinances. The "Revised Code of Washington" forms the general statutory law. The Constitution of Washington is the foremost source of state law. Legislation is enacted by the Washington State Legislature, published in the "Laws of Washington", and codified in the "Revised Code of Washington". State agency regulations (sometimes called administrative law) are published in the "Washington State Register" and codified in the "Washington Administrative Code". Washington's legal system is based on common law, which is interpreted by case law through the decisions of the Supreme Court and Court of Appeals, which are published in the "Washington Reports" and "Washington Appellate Reports", respectively. Counties, cities, and towns may also promulgate local ordinances. The foremost source of state law is the Constitution of Washington. The Washington Constitution in turn is subordinate to the Constitution of the United States, which is the supreme law of the land. Pursuant to the state constitution, the Washington State Legislature has enacted legislation. Its session laws are published in the "Laws of Washington", which in turn have been codified, compiled, and/or consolidated in the "Revised Code of Washington" (RCW). Both are published by the Washington State Statute Law Committee and the Washington State Code Reviser which it employs and supervises. Pursuant to certain statutes, state agencies have promulgated regulations, also known as administrative law. The "Washington State Register" (WSR) is a biweekly publication that includes 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, and the state maximum interest rate. The "Washington Administrative Code" (WAC) codifies or compiles the regulations and arranges them by subject or agency, and is updated twice a month. There are also many agencies with quasi-judicial authority to hold hearings and make decisions. The "Washington State Register" is published by the Statute Law Committee, and the "Washington Administrative Code" is compiled and published under the authority of its Code Reviser. The legal system of Washington is based on the common law. Like all U.S. states except Louisiana, Washington has a reception statute providing for the "reception" of English law. All statutes, regulations, and ordinances are subject to judicial review.