Type of ship and cargo type identifiers

'20'=>'Wing in ground (WIG), all ships of this type',
'21'=>'Wing in ground (WIG), Hazardous category A',
'22'=>'Wing in ground (WIG), Hazardous category B',
'23'=>'Wing in ground (WIG), Hazardous category C',
'24'=>'Wing in ground (WIG), Hazardous category D',
'25'=>'Wing in ground (WIG), Reserved for future use',
'26'=>'Wing in ground (WIG), Reserved for future use',
'27'=>'Wing in ground (WIG), Reserved for future use',
'28'=>'Wing in ground (WIG), Reserved for future use',
'29'=>'Wing in ground (WIG), Reserved for future use',
'30'=>'Fishing',
'31'=>'Towing',
'32'=>'Towing: length exceeds 200m or breadth exceeds 25m',
'33'=>'Dredging or underwater ops',
'34'=>'Diving ops',
'35'=>'Military Ops',
'36'=>'Sailing',
'37'=>'Pleasure Craft',
'38'=>'Reserved',
'39'=>'Reserved',
'40'=>'High speed craft (HSC), all ships of this type',
'41'=>'High speed craft (HSC), Hazardous category A',
'42'=>'High speed craft (HSC), Hazardous category B',
'43'=>'High speed craft (HSC), Hazardous category C',
'44'=>'High speed craft (HSC), Hazardous category D',
'45'=>'High speed craft (HSC), Reserved for future use',
'46'=>'High speed craft (HSC), Reserved for future use',
'47'=>'High speed craft (HSC), Reserved for future use',
'48'=>'High speed craft (HSC), Reserved for future use',
'49'=>'High speed craft (HSC), No additional information',
'50'=>'Pilot Vessel',
'51'=>'Search and Rescue vessel',
'52'=>'Tug',
'53'=>'Port Tender',
'54'=>'Anti-pollution equipment',
'55'=>'Law Enforcement',
'56'=>'Spare - Local Vessel',
'57'=>'Spare - Local Vessel',
'58'=>'Medical Transport',
'59'=>'Ship according to RR Resolution No. 18',
'60'=>'Passenger, all ships of this type',
'61'=>'Passenger, Hazardous category A',
'62'=>'Passenger, Hazardous category B',
'63'=>'Passenger, Hazardous category C',
'64'=>'Passenger, Hazardous category D',
'65'=>'Passenger, Reserved for future use',
'66'=>'Passenger, Reserved for future use',
'67'=>'Passenger, Reserved for future use',
'68'=>'Passenger, Reserved for future use',
'69'=>'Passenger, No additional information',
'70'=>'Cargo, all ships of this type',
'71'=>'Cargo, Hazardous category A',
'72'=>'Cargo, Hazardous category B',
'73'=>'Cargo, Hazardous category C',
'74'=>'Cargo, Hazardous category D',
'75'=>'Cargo, Reserved for future use',
'76'=>'Cargo, Reserved for future use',
'77'=>'Cargo, Reserved for future use',
'78'=>'Cargo, Reserved for future use',
'79'=>'Cargo, No additional information',
'80'=>'Tanker, all ships of this type',
'81'=>'Tanker, Hazardous category A',
'82'=>'Tanker, Hazardous category B',
'83'=>'Tanker, Hazardous category C',
'84'=>'Tanker, Hazardous category D',
'85'=>'Tanker, Reserved for future use',
'86'=>'Tanker, Reserved for future use',
'87'=>'Tanker, Reserved for future use',
'88'=>'Tanker, Reserved for future use',
'89'=>'Tanker, No additional information',
'90'=>'Other Type, all ships of this type',
'91'=>'Other Type, Hazardous category A',
'92'=>'Other Type, Hazardous category B',
'93'=>'Other Type, Hazardous category C',
'94'=>'Other Type, Hazardous category D',
'95'=>'Other Type, Reserved for future use',
'96'=>'Other Type, Reserved for future use',
'97'=>'Other Type, Reserved for future use',
'98'=>'Other Type, Reserved for future use',
'99'=>'Other Type, No additional information'

Formula of identifier

Special crafts

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 Conventions and Additional Protocols)

59

Ships and aircraft of States not parties to an armed conflict


Other ships

First digit(1)

Second digit(1)

First digit(1)

Second digit(1)

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