Submitting significant and non-significant changes

There may be times when you need to notify us of changes to your operations manual or exposition. You must notify the type of change and whether they are either a:

  • significant change
  • non-significant change.

You can use myCASA to submit:

  • Part 42 – significant and non-significant changes
  • ReOC (Part 101 MOS) – non-significant changes
  • AOC Part 119 – non-significant changes
  • Part 131 – non-significant changes
  • Part 137 – non-significant changes
  • Part 138 – non-significant changes
  • Part 141 and 142 – non-significant changes
  • Part 145 – significant and non-significant changes.

We are adding the ability to submit significant changes in myCASA for more parts in the coming months.

Significant change

The definition of what is considered a significant change depends on the Part. You can find a list of significant changes in the relevant legislation. While these changes are not the same across the different legislation, there are some common significant changes across legislation. These can include:

  • changes to operational locations
  • changes to organisational structure
  • other changes that do not maintain or improve, or are not likely to maintain or improve, aviation safety.

Approval of a significant change is chargeable under the Civil Aviation (Fees) Regulations 1995. You will receive an estimate of costs from us to assess these changes.

Use myCASA to notify us of significant changes to Part 145 and Part 42.G CAMO approval certificate.

If you choose not to submit your significant changes using myCASA, complete the following forms to apply for a significant change:

Non-significant change

A non-significant change is any other change that doesn’t fall into the definition of a significant change. This can vary based on each rule and each operator.

Non-significant changes are not chargeable items under the Civil Aviation (Fees) Regulations 1995 and you will not receive an estimate for these changes. However, administrative costs apply if you require your certificate to be re-issued.

If you choose not to submit your non-significant changes through the myCASA portal, use the following forms to notify us of your non-significant changes:

Forms not available in myCASA

The following Parts are currently not available for non-significant change submission through myCASA portal:

Part definitions for significant changes

You can find a list of significant changes and their definitions in the legislation. Parts where you are required to submit a significant change include:

Last updated:
29 Apr 2025
Online version available at: https://www.casa.gov.au//resources-and-education/online-services/submitting-significant-and-non-significant-changes
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