What is the minimum period of time that the air supply for a self-contained breathing apparatus is required to last?
Official USCG Answer & Rule Citation
Correct Answer: Option A — 30 minutes
Self-contained breathing apparatus (SCBA) units utilized aboard commercial vessels must comply with international and Coast Guard standards, requiring a minimum rated air supply service duration of 30 minutes under normal working respiratory demand to ensure safe egress and firefighting operations.
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