Ok,
Is that under the "Personal import Scheme", as on the table on page 8 under Right hand drive, it has the box ticked, But Subject note #2 which states what you said ( must be over 30 years old etc)
Looking at the table, could it depend on what scheme you import the car under??
As The "Pre 89 Vehicles" has a different subject note next to the tick, #4 "may be LHD if under 4.5 tonnes GVM"
Regards
David