USCG-ROR-L3.1
Power-driven vessels and the Annex V lights (Rules 20–23; Part 88)
USCG-ROR-M3 · Lights, shapes and sound signals · USCG-ROR-M3-A Power-driven, towing and pushing, special vessels, anchored barges and restricted-visibility signals: every Inland difference.
Small craft, the Great Lakes all-round white, the pre-1981 exemptions and the **blue** and **red-and-yellow** lights you will only see inside the line.
AI-drafted catalogue content pending SME review. The Rules of the Road examination is the one module where a near miss fails you, and module assignments and pass marks are set by NMC examination policy rather than regulation; verify with the National Maritime Center before booking an exam or relying on any figure here.