The Revised Code of Washington contains the laws that are currently in force.
"The Revised Code of Washington (RCW) is the compilation of all permanent laws now in force. It is a collection of Session Laws (enacted by the Legislature, and signed by the Governor, or enacted via the initiative process), arranged by topic, with amendments added and repealed laws removed. It does not include temporary laws such as appropriations acts."
The official Revised Code of Washington is available at several free Internet sites and on commercial services.
Commercial services include annotated versions of the Revised Code of Washington. Annotations after each section refer to appellate court opinions, law review articles, and other secondary sources.
Indexes, popular name tables, and other tools are useful for locating relevant laws. This is true even for online sources because the language used in the laws is often different from the words and phrases that nonlawyers use.
Each of the print versions of the Revised Code of Washington provide subject indexes, popular names tables, and cross-reference tables at the end of each set.