SUBPART 63.25—Requirements for Specific Types of Automatic Auxiliary Boilers (§63.25-1 to §63.25-9)
- 63.25-1—Small automatic auxiliary boilers.
- 63.25-3—Electric hot water supply boilers.
- 63.25-5—Fired thermal fluid heaters.
- 63.25-7—Exhaust gas boilers.
- 63.25-9—Incinerators.