[Skybluebrewer]

"If you have not held your overseas driver's licence for more than 2 years, or you are under the age of 19 years of age, you are considered a Novice Driver. You will be issued with a provisional licence ('P' plates). Your new driver's licence will show when the provisional driving period ends."

Source: Transferring your overseas licence

 

[Skybluebrewer]

If you click the link for Novice Driver, it explains it. I believe it is based on how long you will have held your licence for at time of applying.

 

[Skybluebrewer]

Based on what it says, I would think you'd have red plates for the first 6 months, then green until the provisional period ends. But then again I don't know. Why not just call or email them and ask?