1. LawStack
  2. Title 49 - Transportation
  3. Subtitle B - OTHER REGULATIONS RELATING TO TRANSPORTATION
  4. Chapter I - PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
  5. Subchapter C - HAZARDOUS MATERIALS REGULATIONS
  6. Part 179 - SPECIFICATIONS FOR TANK CARS
  7. Subpart F - Specification for Cryogenic Liquid Tank Car Tanks and Seamless Steel Tanks (Classes DOT-113 and 107A)
  8. 49 CFR § 179.400-21
49 CFR § 179.400-21
Test of pressure relief valves
November 18, 2020
CFR

Each valve must be tested with air or gas for compliance with §179.401-1 before being put into service.

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§ 179.400-20 Pressure relief devices
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§ 179.400-22 Protective housings

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