ARN application

What is an ARN?

An ARN is an Aviation Reference Number. It is similar to an account number or customer number and it should be quoted whenever you communicate with CASA. It is your own unique identifier.


How do I apply for my ARN?
First you'll need to register an account by verifying your email address.
Once your email address has been verified, you'll be able to access the new digital ARN application to be issued your ARN.


Account services provided by Microsoft on behalf of the Civil Aviation Safety Authority


How do I apply for my ARN?
You'll need to download form 1170 to complete and submit via email to