RCW 39 refers to the Revised Code of Washington Title 39, which governs public contracts and purchasing in the state of Washington. This code outlines the procedures and requirements for public agencies when they procure goods and services, ensuring transparency and fairness in the bidding process. The provisions in RCW 39 cover various aspects, including competitive bidding, contract management, and the responsibilities of public officials. It aims to protect public funds and promote accountability in government spending, ensuring that taxpayers receive value for their money in public contracts.