Aircraft Maintenance Engineers are required to hold an ARN prior to the issue of a licence.
If you are unsure whether or not you have an ARN send an email to CLARC@casa.gov.au. Include your full, legal name and your date of birth as well as a scanned copy of your birth certificate or passport (no other form of identification is acceptable. Confirmation of your ARN details will be sent by email.
If you do not have an ARN, you must submit an Aviation Reference Number (ARN) Application Form (Form 1162). Form 1162 can be submitted at the same time as an application for a regulatory service.