RCW 54 refers to the Revised Code of Washington Title 54, which governs public utility districts (PUDs) in the state of Washington. This legislation outlines the formation, powers, and responsibilities of PUDs, which are local government entities that provide essential services such as electricity, water, and sewer to residents. The code establishes guidelines for the operation and management of these districts, ensuring they serve the public interest. It also includes provisions for financing, governance, and the rights of customers, promoting transparency and accountability in the delivery of utility services.