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General Packaging Requirements - Hazmat - Portable tanks - Hazmat

§178.255-4 Closures for manholes and domes.

RegSense Pipeline and Hazardous Materials Safety Administration (PHMSA), DOT Portable tanks - Hazmat CFR Regulations Hazmat Safety Focus Area CFR Section General Packaging Requirements - Hazmat English Transportation USA

Editor�s Note: For Specification 51 steel portable tank requirements see SUPERSEDED REGULATIONS after the Appendixes in part 178.

(a) The manhole cover shall be designed to provide a secure closure of the manhole. All covers, not hinged to the tanks, shall be attached to the outside of the dome by at least ¹/₈ inch chain or its equivalent. Closures shall be made tight against leakage of vapor and liquid by use of gaskets of suitable material.

(b) [Reserved]

['General Packaging Requirements - Hazmat']

['Portable tanks - Hazmat']

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