🔍 Key Concepts

• 46 CFR Subchapter W – Lifesaving Appliances and Arrangements (rocket-type line throwing appliances) • Differences in equipment requirements for oceangoing, coastwise, and river vessels • How gross tonnage (GT) and route (service) affect required lifesaving equipment

💭 Think About

• First, ask yourself: which type of route (oceangoing, coastwise, river) is typically exposed to the greatest distress and rescue distances, where a line-throwing appliance is most useful? • Compare how requirements might change as tonnage increases: is the smallest vessel on a more dangerous route more likely to need the gear than a larger vessel on a sheltered route? • Think about why a river-going vessel’s operating environment might change what lifesaving appliances are required compared to ocean or coastwise vessels.

✅ Before You Answer

• Identify in 46 CFR which routes (oceangoing, coastwise, river) specifically trigger the requirement for rocket-type line throwing appliances. • Verify how gross tonnage thresholds apply to that requirement and note the lowest GT where it clearly applies. • Before choosing, confirm whether river-only service vessels are treated differently from seagoing/coastwise vessels for this particular lifesaving appliance.