Legislative history refers to the documents and materials created during the Legislature’s consideration of a bill. Researchers are often interested in trying to determine why the Legislature enacted the law, or why it used specific language (that is, legislative intent).
In Washington, several sources for legislative history are available from the mid-1970s forward. The text of bills and journals from both the House and Senate are available for earlier periods of time.
Depending on when a particular law was enacted, your research may involve print and/or online materials. The Washington State Archives could have items not found in print or online sources.
Other libraries have guides on Washington legislative history:
Legislative History - Washington State Archives
Legislative History Guide - Public Law Library of King County
Washington Legislative History and Legislative Intent - Washington State Law Library
Need to research legislative history for a state other than Washington? See State Legislative History Research Guides Inventory - Indiana University Jerome Hall Law Library for links to comparable guides prepared by other law librarians.