CFR › Title 46 › Part 169 › §169.64246 CFR §169.642Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkFor the purpose of this part, the following are considered vital systems—(a)A marine engineering system identified by the OCMI as being crucial to the survival of the vessel or to the protection of the personnel on board; and(b)On vessels greater than 120 feet in length—(1)Bilge system;(2)Ballast system;(3)Fire protection system;(4)Fuel oil system; and(5)Steering and steering control system.