46 CFR § 154.1150
Distribution of dry chemical
April 15, 2021
(a) All locations on the above deck cargo area and the cargo piping outside that cargo area must be protected by:
(1) At least two dry chemical hand hose lines; or
(2) At least one dry chemical hand hose line and one dry chemical monitor.
(b) At least one dry chemical storage unit and hand hose line or monitor must be at the after end of the cargo areas.
(c) Each cargo loading and discharge manifold must be protected by at least one dry chemical monitor.