This document provides guidelines for standard dimension marks for identifying information that must be displayed on ships, such as the ship's name, port of registry, official number, IMO number, and draft marks. It discusses requirements from several flag administrations and makes proposals for minimum length, height, and width dimensions. Standard marks should make ship identification clear while accommodating differences between administrations and ship sizes.

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SHIPS OPERATION
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Title STANDARD DIMENSION MARKS FOR SHIP’S NAME, PORT OF
REGISTRY, OFFICIAL NO., IMO NO. , DRAFT AND LOAD LINE
Issue No 2012/01
Date of Issue 10October 2012
Issued by KYUZRI
Verified by RAMLI ADAM
TYPICAL SHIPYARD STANDARD
LOAD LINE MARKS

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SHIPS OPERATION
FLAG ADMINISTRATION CARVING AND MARKING
Malaysia
IMO No = Not less than 200mm Height
Singapore
Name, POR, Official No and IMO No:
Height not less than 100mm, Width = 75-80% of Height
Malta
Name and POR = not less than 10cm length and of proportionate breadth
Draft mark = not less than 15cm length
Mauritius
Name and POR = not less than 10cm length and of proportionate breadth
Draft mark fwd and aft:
Ship’s built after 1May 1998 = 20cm interval and letters not less than 10cm length
Ship’s built before 1May 1998= 15cm in height
Indian
Name and POR = shall be not less than one decimeter or four inches in height and 1.3 centimeters or half an inch in breadth
PROPOSAL
Name
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Min. Length or Height = 100mm,
Min. breadth or width = 80mm
A
POR
Official No
IMO No Min. Heigth = 200mm
Min. breadth=160mm
Draft mark Min. Length or Height =150mm
Min Breadth or Width = 120mm
Interval = 200mm
8
6
150
80
120
200
100