46 CFR §98.30-15
No person may transfer an inflammable or combustible product to or from a vessel unless—
- (a)The portable tank or IBC and its pumping equipment is electrically grounded to the hull of the vessel; and
- (b)The vessel is electrically grounded to an offshore platform, shore piping, or another vessel by a—
- (1)Cargo hose constructed with an integral grounding wire if the end connections are used for electrical continuity; or
- (2)Separate grounding that is maintained until the cargo hose is disconnected and drained.