Annex 2 - Type of Ship Table
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Safety of Navigation - Circular SN/Circ.227- Guidelines for the Installation of a Shipborne Automatic Identification System (AIS) – (6 January 2003)Amended by SN/Circ.245 - Annex - Guidelines for the Installation of a Shipborne Automatic Identification System (AIS) - Annex 2 - Type of Ship Table

Annex 2 - Type of Ship Table

Identifiers to be used by ships to report their type
Identifier No. Special craft
50 Pilot vessel
51 Search and rescue vessels
52 Tugs
53 Port tenders
54 Vessels with anti-pollution facilities or equipment
55 Law enforcement vessels
56
  • Spare - for assignments to local vessels
57
  • Spare - for assignments to local vessels
58 Medical transports (as defined in the 1949 Geneva Convention and Additional Protocols)
59
  • Ships according to Resolution No 18 (Mob-83)
Other ships
First digit (*) Second digit (*) First digit (*) Second digit (*)
1 - reserved for future use 0 - All ships of this type - 0 - Fishing
2 - WIG 1 - Carrying DG, HS, or MP IMO hazard or pollutant category X (**) - 1 - Towing
3 - see right column 2 - Carrying DG, HS, or MP IMO hazard or pollutant category Y (**) 3 - Vessel 2 - Towing and length of the tow exceeds 200 m or breadth exceeds 25 m
4 - HSC 3 - Carrying DG, HS, or MP IMO hazard or pollutant category Z (**) - 3 - Engaged in dredging or underwater operations
5 - see above 4 - Carrying DG, HS, or MP IMO hazard or pollutant category OS (**) - 4 - Engaged in diving operations
  5 - reserved for future use - 5 - Engaged in military operations
6 - Passenger ships 6 - reserved for future use - 6 - Sailing
7 - Cargo ships 7 - reserved for future use - 7 - Pleasure Craft
8 - Tanker(s) 8 - reserved for future use - 8 - reserved for future use
9 - Other types of ship 9 - No additional information - 9 - reserved for future use
DG: Dangerous Goods.
HS: Harmful Substances.
MP: Marine Pollutants.
(*) NOTE - The identifier should be constructed by selecting the appropriate first and second digits.
(**) NOTE - The digits 1, 2, 3 and 4 reflecting categories X, Y, Z and OS formerly were categories A, B, C and D.

Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.