🔍 Key Concepts

• Lock regulations and procedures used on inland rivers and canals • What type of U.S. government publication normally covers local port, harbor, and waterway information (including bridges, locks, and VTS procedures) • Difference between a general navigation reference and a local/regional supplement

💭 Think About

• Which publication is specifically designed to give detailed information about coasts, rivers, harbors, channels, locks, and local regulations along a route? • Do any of these options sound like broad, all‑purpose navigation textbooks rather than local waterway guides? • Which choices look like they might be informal or limited‑use documents rather than the standard reference every mariner is expected to use for voyage planning?

✅ Before You Answer

• Identify which option is an official U.S. Coast Pilot–type or equivalent government publication used for coastal and inland waterway information • Ask yourself which book you would reasonably expect to find bridge clearances, lock hours, radio frequencies, and special regulations in • Eliminate any option that is primarily a theoretical navigation text rather than a practical pilotage/waterway guide