On a MODU, each EPIRB or SART must be tested at least once __________.
Official USCG Answer & Rule Citation
Correct Answer: Option C — each month
Per 46 CFR and international safety standards for Mobile Offshore Drilling Units, Emergency Position Indicating Radiobeacons (EPIRBs) and Search and Rescue Transponders (SARTs) must undergo monthly testing to verify operational readiness and signal transmission integrity.
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