Marine sanitation devices installed on vessels must be certified by the __________.

Correct Answer: Option A — U.S. Coast Guard

Under 33 CFR Part 159, the U.S. Coast Guard is the regulatory authority responsible for certifying marine sanitation devices. Manufacturers must demonstrate that their equipment meets specific performance standards regarding fecal coliform bacteria and total suspended solids before the device can be legally installed on a U.S. flagged vessel.