PART 52—POWER BOILERS
- SUBPART 52.01—General Requirements (§52.01-1 to §52.01-145)
- SUBPART 52.05—Requirements for Boilers Fabricated by Welding (§52.05-1 to §52.05-45)
- SUBPART 52.15—Requirements for Watertube Boilers (§52.15-1 to §52.15-5)
- SUBPART 52.20—Requirements for Firetube Boilers (§52.20-1 to §52.20-25)
- SUBPART 52.25—Other Boiler Types (§52.25-1 to §52.25-20)