When do I use 'A' and 'G' overrides?

Airlines can use either an 'A' or 'G' override when they receive message '8502 - <DO NOT BOARD>' in the Advanced Passenger Processing (APP) system.

'A' (airline) override

An ‘A’ override will allow an airline to submit the APP information to us and board a passenger in certain circumstances, after an ‘8502 - <DO NOT BOARD>’ message has been received.

Inwards APP

The specific circumstances in which an ‘A’ override can be used to board a traveller are described below:

  • travellers transiting Australia who are travelling from an eligible Transit With Out Visa (TWOV) country
  • military personnel travelling on military orders and holding military identification (certain countries only). This includes accompanying dependants.
  • travellers from the United Nations office in Timor Leste (UNOTIL)
  • positioning air crew
  • residents of Australia returning on an ‘Authority to Return’ or ‘Return Endorsement’ - but only under STRICT CONDITIONS. Please refer to the Advance Passenger Processing (APP) Arrivals Manual (196 KB PDF file) for further details.

Outwards APP

The specific circumstances in which an ‘A’ override can be used to board a traveller are described below:

  • New Zealand passport – current, not expired (not on the system)
  • Australian passport – current, not expired (not on the system)
  • Undocumented traveller

For more detailed information about the circumstances where an ‘A’ override can be used, please refer to the Travel Information Manual (TIM or TIMATIC) or the relevant APP manual.

We recommend that airlines Departure Control Systems (DCS) have an ‘A’ override capability.

'G' (government) override

The 'G' override should be used when:

  • EOC has given the airline authority to override an APP response
  • APP is unavailable and the airline has contacted EOC to confirm passenger details
  • EOC has cleared a passenger’s details after a negative directive from APP.

Appropriate use of the 'A' or 'G' overrides could prevent an airline from being infringed.

As the rules are different for arrivals and departures APP, airlines should refer to the individual APP check-in manual for more specific information about using 'A' and 'G' overrides.​

As the rules are different for arrivals and departures APP, airlines should refer to the individualfor more specific information about using 'A' and 'G' overrides.​