What is an ARN and why do I need one?

An ARN is an Aviation Reference Number. It is similar to an account number or customer number and it should be quoted whenever you call CASA. It is your own unique identifier. If you hold a licence or permission you will find in most cases that the number on the licence or permission is the ARN belonging to the entity that holds that licence or permission.

It is important to keep your contact details up to date so that when CASA needs to contact you we have your current details. This avoids licences, certificates and registrations being sent to the wrong address and causing you problems. It is a legislative requirement to notify change in contact details for security background checks and if you have an aircraft registration. 

How do I apply for an ARN?

The CASA website has details on how to apply for an ARN. There you will find links for an Individual, and an Organisation. It will also answer questions such as:

  • How do I update the personal details on my ARN?

  • What is an ARN and why do I need one?

  • How do I apply for an ARN?

  • What identification do I need to supply with my ARN application? (It is not necessary to supply certified copies of identification)

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