1.2 Search and rescue communications

1.2.1 distress/urgency messages (specifying or supplementary to 1.1)

1.2.2 acknowledgement and/or relay of SAR-messages

1.2.3 performing/co-ordinating SAR-operations

1.2.4 finishing with SAR-operations

1.3 Person overboard

1.4 Requesting medical assistance

2 Urgency communications

2.1 Safety of a ship, aircraft or other vehicle (other than distress) involving

2.1.1 engines and equipment

2.1.2 cargo

2.1.3 ice damage

3 Safety communications

3.1 Warnings involving meteorological and hydrological conditions

3.1.1 winds, storms, tropical storms; state of sea

3.1.2 restricted visibility (due to mist/fog, precipitation)

3.1.3 ice

3.1.4 volcanic activities incl. earth- and seaquakes

3.1.5 abnormal tides

3.2 Navigational warnings involving

3.2.1 land- or seamarks

3.2.2 drifting objects

3.2.3 electronic navaids

3.2.4 seabottom characteristics, wrecks

3.2.5 miscellaneous such as

3.2.5.1 cable, pipe and seismic/hydrocraphic operations

3.2.5.2 diving operations, tows, dredging operations

3.2.5.3 tanker transshipment

3.2.5.4 off-shore installations, rig moves

3.2.5.5 defective locks or bridges

3.2.5.6 military operations

3.2.5.7 fishery

3.3 Environmental protection communications

4 Pilotage

4.1 pilot request

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