Section 27(6) in The Merchant Shipping (Crew Accommodation) Rules, 1960
(6)Access to water closets shall not be obtained directly from a mess room or sleeping room. Provided that access to a water closet may be obtained directly from not more than two sleeping rooms together accommodating not more than four persons. If the a persons so accommodated are three or four in number, the water closet pedestal shall be so screened as to ensure privacy.
