Which type of fire extinguishers are permitted on inspected vessels? (small passenger vessel regulations)

Correct Answer: Option D — All of the above

46 CFR 181.300 permits various types of fire extinguishers, including foam, dry chemical, and carbon dioxide, provided they are USCG-approved. Each type is rated for specific classes of fire, and vessels must carry the appropriate quantity and type based on their size and the hazards present in their machinery spaces.