Engine_2014 : Engineering Safety - 456/2355
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| Approved buoyant work vests may be carried aboard tank vessels and shall be worn by crew members __________ . |
| A) when working near or over the water under unfavorable working conditions |
| B) under the supervision and control of designated ship's officers |
| C) as substitutes for the approved life preservers during routine drills, weather permitting, when a vessel is moored pier side |
| D) all of the above |
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