Which of the precautions listed should be observed when taking on diesel fuel?
Official USCG Answer & Rule Citation
Correct Answer: Option D — Prohibit smoking in the area.
Diesel fuel transfer operations present a significant fire hazard due to the potential for vapor accumulation and spills. Prohibiting smoking in the vicinity is a mandatory safety precaution required by 46 CFR to eliminate ignition sources and ensure compliance with vessel safety management systems during bunkering.
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