COLREGS: Rules of the Road

About

Prepare with confidence for the USCG licensing exam, SWOS Advanced Shiphandling, or any navigation rules qualification with the most comprehensive COLREGS study app available. Whether you're a Naval Officer, Merchant Mariner, or recreational boater pursuing your captain's license, COLREGS: Rules of the Road gives you everything you need to master the International and Inland Navigation Rules all in one beautifully designed app. STUDY SMARTER, NOT HARDER The built-in Spaced Repetition system uses the proven Leitner box method to surface the questions you struggle with more often and retire the ones you've mastered. Instead of grinding through every question every session, you make measurable progress toward exam-day confidence in less time. Prefer a looser review session? Switch to Shuffle Mode for a randomized run through the full question bank — great for quick refreshers between watches. 1,272 EXAM-QUALITY QUESTIONS Questions are organized across three categories that mirror actual exam structure: - International Rules — open-ocean scenarios under COLREGS - Inland Rules — U.S. inland waters distinctions and applications - Both — rules that apply across all waters, tested together Filter by topic to focus your study where it counts: - Lights (Rules 20-31) — vessel identification, arc requirements, and display obligations - Shapes — day signals and their meanings - Whistles and Sounds (Rules 32-37) — maneuvering and warning signals - Diagrams — questions paired with