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Federal regulations · Through 2026-08-25 · Newer source version available

49 CFR 178.255-4: -4 Closures for manholes and domes.

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Where this section sits in the code
  1. Title 49—Transportation
  2. Subtitle B—Other Regulations Relating to Transportation
  3. CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
  4. SUBCHAPTER C—HAZARDOUS MATERIALS REGULATIONS
  5. PART 178—SPECIFICATIONS FOR PACKAGINGS
  6. Subpart H—Specifications for Portable Tanks

(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]

Collected 2026-08-27T02:26:34Z. Source file · JSON

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