The cargo handling equipment shall be maintained by the tank vessel's personnel in accordance with the regulations in this subchapter, including the following:
- (a) Cargo hose shall not be used in transfer operations in which the pressures are such that leakage of cargo occurs through the body of the hose.
- (b) Cargo pump relief valves shall be tested at least once each year to determine that they function satisfactorily at the pressure at which they are set to open.
- (c) Cargo pump pressure gage shall be tested at least once a year for accuracy.
- (d) The cargo discharge piping of all tank vessels shall be tested at least once each year for tightness, at the maximum working pressure.