Civil Aviation Regulations 1988

A CAR certificate of validation for an overseas balloon authorisation remains in force until whichever of the following occurs first:

the end of the period of 3 months beginning on the day on which the certificate was issued;

the end of the period set out by CASA on the certificate as the period for which the certificate remains in force;

the overseas balloon authorisation ceases to be in force;

if a holder of the overseas balloon authorisation is required to hold an overseas medical certificate for the authorisation to exercise the authority given by the authorisation in the country in which it was issued—the overseas medical certificate for the authorisation ceases to be in force;

the CAR certificate of validation is suspended or cancelled.

CASA may set out on a CAR certificate of validation the period for which the certificate remains in force.