WAC 51-52-1000. Chapter 10—Boilers, water heaters and pressure vessels

Informational Note: Boilers and pressure vessels are regulated by chapter 70.79 RCW and chapter 296-104 WAC in addition to the requirements of this code. 1001.1 Scope. This chapter shall govern the installation, alteration and repair of boilers, water heaters and pressure vessels. EXCEPTIONS: 1. Pressure vessels used for unheated water supply. 2. Portable unfired pressure vessels and Interstate Commerce Commission containers. 3. Containers for bulk oxygen and medical gas. 4. Unfired pressure vessels having a volume of 5 cubic feet (0.14 m 3 ) or less operating at pressures not exceeding 250 pounds per square inch (psi) (1724 kPa) and located within occupancies of Groups B, F, H, M, R, S and U. 5. Pressure vessels used in refrigeration systems that are regulated by Chapter 11 of this code. 6. Pressure tanks used in conjunction with coaxial cables, telephone cables, power cables and other similar humidity control systems. 7. Any boiler or pressure vessel subject to inspection by federal or state inspection programs.