Article 11

　　1. Sufficient mess room accommodation shall be provided in all ships.

　　2. In ships of less than 1 000 tons separate mess room accommodationshall be provided for

　　（a） master and officers；

　　（b） petty officers and other ratings.

　　3. In ships of 1 000 tons and over， separate mess room accommodationshall be provided for

　　（a） master and officers；

　　（b） deck department petty officers and other ratings；

　　（c） engine department petty officers and other ratings：

　　Provided that

　　（i） one of the two mess rooms for the petty officers and otherratings may be allotted to the petty officers and the other to the otherratings；

　　（ii） a single mess room may be provided for deck and enginedepartment petty officers and other ratings in cases in which theorganizations of shipowners and/or shipowners and the recognised bona fidetrade unions of seafarers concerned have expressed a preference for suchan arrangement.

　　4. Adequate mess room accommodation shall be provided for the cateringdepartment， either by the provision of a separate mess room or by givingthem the right to the use of the mess rooms assigned to other groups； inthe case of ships of 5 000 tons or over with more than five persons in thecatering department consideration shall be given to the provision of aseparate mess room.

　　5. The dimensions and equipment of each mess room shall be sufficientfor the number of persons likely to use it at any one time.

　　6. Mess rooms shall be equipped with tables and approved seatssufficient for the number of persons likely to use them at any one time.

　　7. The competent authority may permit such exceptions to the foregoingrules concerning mess room accommodation as may be necessary to meet thespecial conditions in passenger ships.

　　8. Mess rooms shall be located apart from the sleeping rooms and asclose as practicable to the galley.

　　9. where available pantries are not accessible to mess rooms， adequatelockers for mess utensils and proper facilities for washing utensils shallbe provided.

　　10. The tops of tables and seats shall be of damp-resisting material，without cracks and capable of being easily cleaned.

　　Article 12

　　1. In all ships a space or spaces to which the crew can have accesswhen off duty shall be provided on an open deck； the space or spaces shallbe of adequate area， having regard to the size of the ship and the crew.

　　2. Recreation accommodation， conveniently situated and appropriatelyfurnished， shall be provided for officers and for ratings. where this isnot provided separately from the mess rooms the latter shall be planned，furnished， and equipped to give recreational facilities.

　　Article 13

　　1. Sufficient sanitary accommodation， including wash basins and tuband/or shower baths， shall be provided in all ships.

　　2. The following minimum number of separate water closets shall beprovided：

　　（a） in ships of under 800 tons： three；

　　（b） in ships of 800 tons or over， but under 3 000 tons： four；

　　（c） in ships of 3 000 tons or over： six；

　　（d） in ships where the radio officers or operators areaccommodated in an isolated position， sanitary facilities near oradjacent thereto shall be provided.

　　3. National laws or regulations shall prescribe the allocation ofwater closets to various groups， subject to the provisions of paragraph 4of this Article.

　　4. Sanitary facilities for all members of the crew who do not occupyrooms to which private facilities are attached shall be provided for eachgroup of the crew on the following scale：

　　（a） one tub and/or shower bath for every eight persons or less；

　　（b） one water closet for every eight persons or less；

　　（c） one wash basin for every six persons or less： Provided thatwhen the number of persons in a group exceeds an even multiple of thespecified number by less than one-half of the specified number thissurplus may be ignored for the purpose of this paragraph.

　　5. When the total number of the crew exceeds 100 and in passengervessels normally engaged on voyages of not more than four hours' duration，consideration may be given by the competent authority to specialarrangements or a reduction in the number of facilities required.

　　6. Cold fresh water and hot fresh water or means of heating watershall be available in all communal wash places. The competent authority，in consultation with the organizations of shipowners and/or the shipownersand with the recognised bona fide trade unions of seafarers， may fix themaximum amount of fresh water which the shipowner may be required tosupply per man per day.

　　7. Wash basins and tub baths shall be of adequate size and constructedof approved material with a smooth surface not liable to crack， flake orcorrode.

　　8. All water closets shall have ventilation to the open air，independently of any other part of the accommodation.

　　9. All water closets shall be of an approved pattern and provided withan ample flush of water， available at all times and independentlycontrollable.

　　10. Soil pipes and waste pipes shall be of adequate dimensions andshall be so constructed as to minimise the risk of obstruction and tofacilitate cleaning.

　　11. Sanitary accommodation intended for the use of more than oneperson shall comply with the following requirements：

　　（a） floors shall be of approved durable material， easily cleanedand impervious to damp， and shall be properly drained；

　　（b） bulkheads shall be of steel or other approved material andshall be watertight up to at least 9 ins. （23 cm.） above the level of thedeck；

　　（c） the accommodation shall be sufficiently lighted， heated andventilated；

　　（d） water closets shall be situated convenient to， but separatefrom， sleeping rooms and wash rooms， without direct access from thesleeping rooms or from a passage between sleeping rooms and water closetsto which there is no other access： Provided that this requirement shallnot apply where a water closet is located in a compartment between twosleeping rooms having a total of not more than four persons；

　　（e） where there is more than one water closet in a compartment，they shall be sufficiently screened to ensure privacy.

　　12. In all ships facilities for washing and drying clothes shall beprovided on a scale appropriate to the size of the crew and the normalduration of the voyage.

　　13. The facilities for washing clothes shall include suitable sinks，which may be installed in wash rooms， if separate laundry accommodation isnot reasonably practicable， with an adequate supply of cold fresh waterand hot fresh water or means of heating water.

　　14. The facilities for drying clothes shall be provided in acompartment separate from sleeping rooms and mess rooms， adequatelyventilated and heated and equipped with lines or other fittings forhanging clothes.

　　Article 14

　　1. In any ship carrying a crew of fifteen or more and engaged in avoyage of more than three day's duration， separate hospital accommodationshall be provided. The competent authority may relax this requirement inrespect of vessels engaged in coastal trade.

　　2. The hospital accommodation shall be suitably situated， so that itis easy of access and so that the occupants may be comfortably housed andmay receive proper attention in all weathers.

　　3. The arrangement of the entrance， berths， lighting， ventilation，heating and water supply shall be designed to ensure the comfort andfacilitate the treatment of the occupants.

　　4. The number of hospital berths required shall be prescribed by thecompetent authority.

　　5. Water closet accommodation shall be provided for the exclusive useof the occupants of the hospital accommodation， either as part of theaccommodation or in close proximity thereto.

　　6. Hospital accommodation shall not be used for other than medicalpurposes.

　　7. An approved medicine chest with readily understandable instructionsshall be carried in every ship which does not carry a doctor.

　　Article 15

　　1. Sufficiently and adequately ventilated accommodation for thehanging of oilskins shall be provided outside but convenient to thesleeping rooms.

　　2. In ships of over 3，000 tons one room for the deck department andone room for the engine department shall be provided and equipped for useas an office.

　　3. In ships regularly trading to mosquito-infested ports provisionsshall be made to protect the crews' quarters against the admission ofmosquitoes by the fitting of suitable screens to side scuttles，ventilators and doors to open deck.

　　4. All ships trading regularly to or in the tropics and the PersianGulf shall be equipped with awnings for use over exposed decks above crewaccommodation and over recreation deck space or spaces.

　　Article 16

　　1. In the case of the ships mentioned in paragraph 5 of Article 10 thecompetent authority may， in respect of the members of the crew therereferred to， modify the requirements laid down in the foregoing articlesas far as may be necessary to take account of their distinctive nationalhabits and customs and in particular may make special arrangementsconcerning the number of persons o