Code of Federal Regulations (Last Updated: April 5, 2024) |
Title 49 - Transportation |
Subtitle B - Other Regulations Relating to Transportation |
Chapter I - Pipeline and Hazardous Materials Safety Administration, Department of Transportation |
Part 179 - Specifications for Tank Cars |
Subpart F - Specification for Cryogenic Liquid Tank Car Tanks and Seamless Steel Tanks (Classes DOT-113 and 107A) |
§ 179.400-21 - Test of pressure relief valves.
Latest version.
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§ 179.400-21 Test of pressure relief valves.
Each valve must be tested with air or gas for compliance with § 179.401-1 before being put into service.