Guidelines for installing AIS units have been developed by the International Maritime Organization. Refer to .

Programming an AIS unit depends on specific manufacturer requirements. Incorrect programming of an AIS unit may prevent the accurate display of information about that vessel.

AIS Class A units are user configurable and may need a password to change programmed information. Static data must be programmed correctly and includes ship name, maritime mobile service identity (MMSI) number, length, breadth, and so on.

AIS Class B units may not be user configurable. You may need to contact the manufacturer or retailer for instructions.

Read more about AIS Class A and B units.

MMSI number

All AIS units require a Maritime Mobile Service Identity (MMSI) number to operate. MMSIs are allocated according to international standards.

Find out how to get an MMSI in Australia.AIS units are not ‘registered’ in the same way as emergency position indicating radio beacons (EPIRBs) or emergency beacons.