The Revised Code of Washington, known as the RCW, is the official compilation of every permanent general law in force in Washington State. It gathers statutes passed by the legislature and approved by voters into a numbered, searchable system, and the full text is available for free on the state legislature’s website.1Washington State Legislature. Washington Code 1.04 – The Code Whether you are checking a traffic rule, verifying a licensing requirement, or reading the elements of a criminal charge, the RCW is where the answer lives.
How the Code Is Organized
The RCW uses three levels: Titles, Chapters, and Sections. Titles cover broad subject areas. Title 46 covers Motor Vehicles. Title 9A is the Washington Criminal Code.2Washington State Legislature. Title 9A RCW – Washington Criminal Code Each Title breaks into Chapters focused on specific topics, and each Chapter contains the individual Sections that state the actual rules, requirements, and penalties.
Before you dig into any specific title, it helps to know that Chapter 1.16 sets general definitions that apply across the entire code unless a particular statute says otherwise. It defines terms like “person” (which includes limited liability companies), “month,” “fiscal biennium,” and “legal holidays.”3Washington State Legislature. Chapter 1.16 RCW – General Definitions A term you assume is narrow may be broader than it looks, and vice versa.
Reading an RCW Citation
Every section has a three-part number separated by periods: Title, Chapter, Section. In RCW 9A.46.020, the “9A” is the title (the criminal code), “.46” is the chapter within that title (harassment), and “.020” is the specific section. Once the pattern clicks, any RCW cite tells you where you are in the code and lets you jump straight to that page online.
The Code Reviser assigns these numbers so new laws fit logically into the existing structure, and occasionally creates new titles or chapters when the subject calls for it.4Washington State Legislature. RCW 1.08.015 – Duties of Code Reviser
Finding a Law Online
The legislature hosts the current RCW at app.leg.wa.gov/rcw. A few ways to search:
- Citation search. If you already have the RCW number, type it in and go straight to the section.
- Keyword search. Full-text search across the whole code by topic, phrase, or term.
- Browse by Title. The main page lists all titles in numerical order so you can drill down.
- RCW Archive. Snapshots of the code as it stood each year since 1973, useful when you need the law as it read on a specific date.
The online RCW is updated twice a year: once in early fall after the legislative session ends, and again at the end of the year if voters passed ballot measures that changed the law.5Washington State Legislature. Revised Code of Washington (RCW) Between those updates, a newly passed bill may not yet appear in the code. To read a brand-new law before it has been codified, check the session laws.6Washington State Legislature. Session Laws
RCW vs. WAC
The RCW is not the whole rulebook. It contains statutes: laws passed by the legislature and signed by the governor, plus laws voters approved at the ballot. The Washington Administrative Code, or WAC, contains the rules state agencies write under the authority those statutes give them.7Washington State Legislature. State Laws and Rules
In practice, an RCW section might require a license for a particular profession and direct an agency to set the specifics. The actual application steps, continuing education hours, and fee schedules then appear in the WAC. Use the RCW to find the underlying legal authority; use the WAC for the agency’s operating rules. Both live on the same legislative site. WAC citations use dashes between their numbering elements instead of periods.
How a Bill Becomes Part of the Code
When the legislature passes a bill and the governor signs it, the new law first exists as a session law, recorded by its enactment date during that legislative term.6Washington State Legislature. Session Laws The Code Reviser then places that session law into the RCW’s existing structure and assigns it a permanent title, chapter, and section number.8Washington State Legislature. RCW 1.08.013 – Duties of Code Reviser
The Reviser’s editorial authority is limited to form, not substance. Spelling errors, cross-reference updates, capitalization, and phrases like “this act” being replaced with the correct section numbers are all fair game. Changing what a law actually means is not.4Washington State Legislature. RCW 1.08.015 – Duties of Code Reviser
The RCW’s Weight in Court
The published RCW is prima facie evidence of Washington law, meaning courts accept the codified text as the law unless someone proves otherwise.9Washington State Legislature. RCW 1.04.020 – Prima Facie Evidence That designation was set when the code was enacted and carries through every update the Code Reviser publishes.10Washington State Legislature. RCW 1.04.010 – The Revised Code of Washington
If a discrepancy ever surfaces between the codified RCW text and the original session law, the session law controls. Such conflicts are rare, and for most legal research, filings, and everyday questions about what the law requires, the RCW itself is the authoritative source.
How Courts Read the Words
When a case turns on what an RCW section means, Washington courts start with the plain language of the statute. If the words are clear and unambiguous, the court applies them as written and does not look to legislative history or other interpretive tools. Courts move beyond the plain text only when a literal reading produces an absurd result or when the language is genuinely ambiguous. In those situations, judges consider the broader statutory context, the law’s legislative history, and standard rules of construction.
The takeaway for anyone reading the RCW is simple. The words on the page carry the most weight. “30 days” means 30 days, not roughly a month. A definition that says “person includes a limited liability company” applies everywhere the term appears unless a specific chapter overrides it.3Washington State Legislature. Chapter 1.16 RCW – General Definitions Skim the general definitions before you commit to an interpretation of a specific title, and the code becomes much easier to trust.