(Paragraphs 4 and 5 apply to all ships to which this regulation
applies. For ships constructed before 1 July 2004, the requirements
of paragraphs 4 and 5 shall be complied with not later than the first
scheduled dry-docking of the ship after 1 July 2004)
1 This regulation applies to all passenger ships
of 100 gross tonnage and upwards and to all cargo ships of 300 gross
tonnage and upwards.
2 Every ship shall be provided with an identification
number which conforms to the IMO ship identification number scheme
adopted by the Organizationfootnote.
4 The ship's identification number shall be permanently
.1 in a visible place either on the stern of the
ship or on either side of the hull, amidships port and starboard,
above the deepest assigned load line or either side of the superstructure,
port and starboard or on the front of the superstructure or, in the
case of passenger ships, on a horizontal surface visible from the
.2 in an easily accessible place either on one
of the end transverse bulkheads of the machinery spaces, as defined
in regulation II-2/3.30, or on one
of the hatchways or, in the case of tankers, in the pump-room or,
in the case of ships with ro-ro spaces, as defined in regulation II-2/3.41, on one of the end
transverse bulkheads of the ro-ro spaces.
5.1 The permanent marking shall be plainly visible,
clear of any other markings on the hull and shall be painted in a
5.2 The permanent marking referred to in paragraph
4.1 shall be not less than 200 mm in height. The permanent marking
referred to in paragraph 4.2 shall not be less than 100 mm in height.
The width of the marks shall be proportionate to the height.
5.3 The permanent marking may be made by raised
lettering or by cutting it in or by centre punching it or by any other
equivalent method of marking the ship identification number which
ensures that the marking is not easily expunged.
5.4 On ships constructed of material other than
steel or metal, the Administration shall approve the method of marking
the ship identification number.