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AIS ship and cargo type · Other type

AIS ship type 94: Other type, hazardous category D

Ship type 94 is the other type family, units digit 4: hazardous category D. What it means, what it does not, and how many vessels we can hear sending it right now.

What code 94 means

The catch-all family for vessels that fit none of the specific ones. The code says the operator did not pick a more specific family; it says nothing more about what the vessel is.

A units digit of 4 is the operator declaring hazardous category D cargo on board — the standard groups dangerous goods, harmful substances and marine pollutants into categories A to D. It is a voluntary, hand-entered declaration, not a manifest.

Reading the two digits

  1. Tens digit 9 → the other type family, codes 90–99.
  2. Units digit 4 → hazardous category D.
  3. Therefore: Other type, hazardous category D.

Every code in the 90–99 range

CodeMeaning
90Other type
91Other type, hazardous category A
92Other type, hazardous category B
93Other type, hazardous category C
94Other type, hazardous category D
95Other type, reserved
96Other type, reserved
97Other type, reserved
98Other type, reserved
99Other type, no additional information

What the code is not

The ship-and-cargo type is typed into the transponder by whoever installs or operates it. No authority checks it against the ship’s certificates, and it is broadcast in the static report every six minutes whether or not it is right. It describes what the operator says the vessel is, not what it is doing — that is the job of the navigational status.

For the whole decade structure in one read, see AIS ship type codes explained.