On a newly constructed oceangoing vessel of 10,000 gross tons, equipped with an approved 100 ppm oily-water separator, and bilge monitor, the bilge monitor continuous record must be __________.

Correct Answer: Option A — maintained onboard for not less than 3 years

33 CFR 151.25 requires that records from the bilge monitor and oily-water separator equipment be maintained on board for a minimum of three years. This documentation is essential for Port State Control inspections to verify compliance with international oil discharge standards and the vessel's Oil Record Book entries.