🔍 Key Concepts

• 46 CFR Subchapter C – Uninspected Vessels fire protection requirements • Distinguish between engine-room fire protection and portable extinguishers elsewhere on tugboats • How vessel horsepower (BHP) and gross tonnage (GT) affect the required number/size of portable extinguishers

💭 Think About

• First, identify which specific CFR table applies to an uninspected towing vessel of this tonnage and horsepower built after 2010 on the Great Lakes • Check the column for over 3000 BHP but not more than 5000 or 6000 BHP and note the number and type (size/class) of extinguishers required • Ask yourself whether any additional extinguishers are required for special hazards or spaces beyond the basic minimum (e.g., for galley, accommodations, or extra machinery spaces)

✅ Before You Answer

• Verify that you are using Uninspected Vessels / Towing vessels requirements, not inspected Subchapter T or K passenger-vessel tables • Confirm the B-II vs 20-B equivalency in the table so you’re matching the right extinguisher size/class to the question wording • Double-check that the table row you pick matches both the vessel’s tonnage and its brake horsepower, and that the year built (2017) doesn’t trigger a different standard or additional requirement