Specifications

34
5.4.1
Table for ID Numbers
Table A.2 ID Numbers Used in AIS
Identifier No. Special craft
50 Pilot Vessel
51 Search and rescue vessel
52 Tugs
53 Port tenders
54 Vessels with anti-pollution facilities or equipment
55 Law enforcement vessels
56 Spare – for assignments to local vessel
57 Spare – for assignment to local vessel
58 Medical transports (as defined in the 1949 Geneva Conventions and
Additional Protocols)
59 Ships according to Resolution No. 18 (Mob-8.3)
Other Ships
First digit (*) Second Digit (*)
First digit (*)
Second digit (*)
1-reserved for
future use
0-All ships on the type - 0-Fishing
2-WIG 1-Carrying DG, HS, or MP
IMO hazard of pollutant
category A.
- 1-Towing
3-see right
column
2-Carrying DG, HS, or MP
IMO hazard or pollutant
category ,
3-vessel 2-Towing and length of the
tow exceeds 200m or breadth
exceeds 25m
4-HSC 3-Carrying DG, HS, MP
IMO hazard or pollutant
- 3-Engaged in dredging or
underwater operations.
5-see above 4-Carrying DG, HS, or MP
IMO hazard or pollutant
category C.
- 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-Tankers 8-reserved for Future use - 8-reserved for future use
9-Other types
of ships
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 digit