Watchstander: COLREGS Trainer

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About this app

Learn and practice the International Regulations for Preventing Collisions at Sea (COLREGS) and maritime Rules of the Road with Watchstander.

Watchstander: CORTA combines Rules of the Road knowledge testing with simulator-based training. Practice randomized questions, review your performance, study the Navigation Rules, and apply what you know in a live ship encounter.

TRAIN YOUR RULES OF THE ROAD KNOWLEDGE

• Practice randomized COLREGS and Rules of the Road questions
• Choose different test lengths for quick practice or longer study sessions
• Review correct and incorrect answers after each test
• Track scores and training activity in the SWO Log
• Access the bundled Navigation Rules handbook
• Review Watchstander Standing Orders and watchstanding guidance

PRACTICE IN THE SIMULATOR

Go beyond multiple-choice questions with scenario-based training inside the Watchstander simulator.

The current Rule 14 Head-on Situation places you underway with an approaching vessel and evaluates how you respond. Use ship controls, radar, and navigation displays to recognize the developing situation, maneuver your vessel, and complete the encounter.

Scenario results provide feedback on your performance and record the activity in your training history.

BUILT FOR MARITIME TRAINING

Watchstander is designed for naval and Coast Guard watchstanders, officer candidates, midshipmen, maritime academy students, merchant mariners, boating students, instructors, and anyone studying COLREGS or preparing for Rules of the Road examinations.

Use Watchstander to reinforce collision-avoidance knowledge, practice maritime decision-making, and keep your Rules of the Road skills current.

Watchstander: CORTA is an independent training and study aid. It is not affiliated with or endorsed by the U.S. Navy, U.S. Coast Guard, International Maritime Organization, or any government agency. It does not replace official publications, formal instruction, licensing requirements, or professional judgment.
Practice COLREGS and Rules of the Road with tests and a live ship scenario.
Updated on
Sep 10, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
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  • No data collected
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What’s new

Updated the app icon to match the Google Play listing. No changes to training content or gameplay.
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Everyone
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About the developer
Enclave Ideas LLC
Dev@EnclaveIDEAS.com
1245 Cedar Rd Ste G-211 Chesapeake, VA 23322-7141 United States
+1 757-215-5378

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