Part 53. PART 53—HEATING BOILERS

• SUBPART 53.01 [§ 53.01-1 - § 53.01-10] - Subpart 53.01—General Requirements
• SUBPART 53.05 [§ 53.05-1 - § 53.05-5] - Subpart 53.05—Pressure Relieving Devices (Article 4)
• SUBPART 53.10 [§ 53.10-1 - § 53.10-15] - Subpart 53.10—Tests, Inspection, Stamping, and Reporting (Article 5)
• SUBPART 53.12 [§ 53.12-1 - § 53.12-1] - Subpart 53.12—Instruments, Fittings, and Controls (Article 6)