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49 C.F.R. § 178.255-4   Closures for manholes and domes.

Title 49 - Transportation

Title 49: Transportation
PART 178—SPECIFICATIONS FOR PACKAGINGS
Subpart H—Specifications for Portable Tanks

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§ 178.255-4   Closures for manholes and domes.

(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]

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