; (2) a vessel stability test; (3) vessel stability and loading instructions; (4) an assigned vessel loading mark; (5) a vessel condition survey at least twice in 5 years, not more than 3 years apart; (6) an out-of-water vessel survey at least once every 5 years; (7) maintenance of records to demonstrate compliance with the program, and the availability of such records for inspection; and (8) such other aspects of vessel safety as the Secretary considers appropriate. (c) Compliance Section 4507 shall not apply to a substitute-eligible vessel that complies with the requirements of the program established under this section. 4511. Prohibited acts A person may not operate a vessel in violation of this chapter or a regulation prescribed under this chapter. 4512. Termination of unsafe operations An official authorized to enforce this chapter— (1) may direct the individual in charge of a vessel to which this chapter applies to immediately take reasonable steps necessary for the safety of individuals on board the vessel if the official observes the vessel being operated in an unsafe condition that the official believes creates an especially hazardous condition, including ordering the individual in charge to return the vessel to a mooring and to remain there until the situation creating the hazard is corrected or ended