Code of Federal Regulations > Title 46 > Chapter I > Part 56 - PART 56—PIPING SYSTEMS AND APPURTENANCES

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

Subpart 56.01 [§ 56.01-1 - § 56.01-10] -

Subpart 56.04 [§ 56.04-1 - § 56.04-10] - Subpart 56.04—Piping Classification

Subpart 56.07 [§ 56.07-5 - § 56.07-10] - Subpart 56.07—Design

Subpart 56.10 [§ 56.10-1 - § 56.10-5] - Subpart 56.10—Components

Subpart 56.15 [§ 56.15-1 - § 56.15-10] - Subpart 56.15—Fittings

Subpart 56.20 [§ 56.20-1 - § 56.20-20] - Subpart 56.20—Valves

Subpart 56.25 [§ 56.25-5 - § 56.25-20] - Subpart 56.25—Pipe Flanges, Blanks, Flange Facings, Gaskets, and Bolting

Subpart 56.30 [§ 56.30-1 - § 56.30-40] - Subpart 56.30—Selection and Limitations of Piping Joints

Subpart 56.35 [§ 56.35-1 - § 56.35-15] - Subpart 56.35—Expansion, Flexibility and Supports

Subpart 56.50 [§ 56.50-1 - § 56.50-110] - Subpart 56.50—Design Requirements Pertaining to Specific Systems

Subpart 56.60 [§ 56.60-1 - § 56.60-25] - Subpart 56.60—Materials

Subpart 56.65 [§ 56.65-1 - § 56.65-1] - Subpart 56.65—Fabrication, Assembly, and Erection

Subpart 56.70 [§ 56.70-1 - § 56.70-20] - Subpart 56.70—Welding

Subpart 56.75 [§ 56.75-5 - § 56.75-30] - Subpart 56.75—Brazing

Subpart 56.80 [§ 56.80-5 - § 56.80-15] - Subpart 56.80—Bending and Forming

Subpart 56.85 [§ 56.85-5 - § 56.85-15] - Subpart 56.85—Heat Treatment of Welds

Subpart 56.90 [§ 56.90-1 - § 56.90-10] - Subpart 56.90—Assembly

Subpart 56.95 [§ 56.95-1 - § 56.95-10] - Subpart 56.95—Inspection

Subpart 56.97 [§ 56.97-1 - § 56.97-40] - Subpart 56.97—Pressure Tests