Tankerman · Safety — Hot Work in Cargo Areas
Hot work (welding, burning) on or near cargo tanks may proceed only when:
- AVapors are at the lower flammable limit
- BThe tank is freshly loaded with volatile cargo
- CA hot-work permit is issued after gas-freeing/testing shows the space and adjacent areas are safe, with a fire watch posted✓ Correct
- DNo testing has been done but the area looks clean
Explanation
Hot work in or near cargo spaces requires a permit issued only after the space and adjacent tanks/lines are gas-freed and tested (and re-tested as needed), combustibles removed, the area isolated, firefighting and a fire watch in place. An untested or vapor-laden space must never have an ignition source introduced.
Authority: ISGOTT; 46 CFR; SOLAS
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