
Aspect: Nav Rules Drills
Rules of the Road, 90% to pass
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The Rules of the Road module of the USCG exam is 50 questions, closed book, and needs 90% to pass -- five wrong and you fail. Aspect is built around that one fact.
FREE FOREVER
- The complete text of the International and Inland Navigation Rules, side by side, with every divergence between them flagged
- Full-text search -- type a bare rule number ("15") to jump straight to it
- Every question from the USCG's own published sample examinations
ASPECT PRO ($6.99, one time)
- Every light and shape configuration, drawn as original artwork you rotate to any aspect -- recognition is most of the exam
- Sound signals synthesised at the real one-second and four-to-six-second timing, International and Inland meanings side by side
- A full closed-book exam simulation: 50 questions, weighted to the real distribution, 90% to pass, timed
- Per-rule progress and weak-area tracking
- Build your own practice test by category and length, or print one on paper
LIMITS
This is a study aid. It does not satisfy the requirement in 33 CFR 83.01(g) to carry a copy of the Inland Rules on board -- consult NVIC 01-16 and carry an approved copy. Always verify against the current published edition.
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What's New in Aspect
1.0
September 9, 2026
1
In-App Purchases
$6.99
Aspect Pro
All drills, exam mode, progress tracking. Forever.




