Aids to Navigation
You see an orange circle marker with '5 MPH' printed inside it. What must you do?
Answer
Do not exceed 5 miles per hour in that area
The orange circle marks a controlled area and the text inside states the control. '5 MPH' means the speed limit in that area is 5 miles per hour, and it is enforceable.
Source: U.S. Coast Guard / Office of the Federal Register — 33 CFR Part 62, U.S. Aids to Navigation System, § 62.33(a)(3), Information and regulatory marks — https://www.ecfr.gov/current/title-33/section-62.33
Not the answer
- Ignore it unless it is a channel
- Keep out of the entire area
- Anchor there for the night
Practice this
The boater safety certification exam is 50 questions and takes 40 correct — 80% — to pass. The app’s page carries a free ten-question test drawn from the same bank, marked as you go.
Take the free practice test