The address in which the car is registered. This is important for the approval letter you will receive.
All relevant terms and restrictions are available from Queensland Transport:
By submitting this form and selecting "I agree" you agree to use the SIV registration within the rules set out by Queensland Transport listed under "Special Interest Vehicle Concession Scheme guide". You also agree to carry the relevant paperwork with you at all times.
Failure to comply with these terms may result in your registration suspension which may impact any future SIV applications with the club.