🔍 Key Concepts

• Definition of Western Rivers in 46 CFR for towing vessel equipment and navigation requirements • How specific waterways like the Mississippi River, Port Allen–Morgan City Alternate Route, and Red/Old River are classified for regulatory purposes • The phrase "when it refers to regulations requiring towing vessels to carry navigational-safety equipment" and how that narrows the definition

💭 Think About

• Look up how the term Western Rivers is formally defined in the towing vessel regulations, not just in general navigation usage • Check whether each individually listed waterway (Mississippi, Port Allen–Morgan City Alternate Route, Red/Old River) is explicitly named or clearly included within that formal definition • Ask yourself: is the question hinting at a more limited definition, or does the regulation group all these waters under one broader term?

✅ Before You Answer

• Verify the exact wording of 46 CFR definitions related to towing vessel navigational-safety equipment • Confirm whether tributaries of a named Western River are automatically included under that term • Check if any one choice is clearly too narrow (leaves out a listed waterway that you know is included) or too broad (includes something that is not in the regulatory definition)