Tankerman · Lightering — STS Transfer
During a ship-to-ship (STS) cargo transfer, the two vessels are kept apart and protected by:
- ADirect steel-to-steel contact
- BProperly sized primary and secondary fenders, with an approved mooring arrangement and a transfer (STS) plan✓ Correct
- CA single small fender at the bow
- DNo fenders if the sea is calm
Explanation
STS operations use large primary fenders (often pneumatic Yokohama-type) between the hulls and secondary fenders to prevent contact at the ends, with a mooring pattern and a written transfer operations plan. A Person in Charge and pre-transfer conference apply as in any transfer.
Authority: OCIMF STS Transfer Guide; 33 CFR 156 Subpart C
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