The following minimum sanitary installations must be provided in vessels with accommodation:
(a) one wash basin connected up to hot and cold potable water per accommodation unit or per four crew members ...
(b) one bath or shower connected up to hot and cold potable water per accommodation unit or per six crew members;
(c) one water closet per accommodation unit or per six crew members.
Stale air from galleys or sanitary installations must be expelled from the vessel by the most direct route.
