RCW 40 refers to a section of the Revised Code of Washington, which is a compilation of all permanent laws in the state of Washington. This code includes various statutes that govern different aspects of state law, including public records, property, and criminal law. Specifically, RCW 40 deals with the management and accessibility of public records. It outlines the responsibilities of state agencies in maintaining records and provides guidelines for public access, ensuring transparency and accountability in government operations.