Airspace reviews and changes

We review Australian-administered airspace to help ensure it remains safe and fit for purpose as aviation activity and technology changes over time.

Reviews help identify whether current airspace arrangements are still appropriate or whether we need to make improvements to support safety, efficiency or access.

When reviewing airspace, we consider:

  • safety of aircraft operations
  • current and future aviation needs
  • changes in traffic levels or flight patterns
  • advances in aviation technology.

When a review may happen

These events may trigger an airspace review:

Not every review results in a change.

Types of airspace reviews

We choose the type of review based on the issue and the complexity of the airspace.

Airspace risk profile

A high-level review to identify risk factors and decide if we need more assessment.

Airspace analysis

A short, focused review of current airspace use.

Detailed airspace review

A more detailed assessment over a longer period. It may consider nearby airspace and possible future changes.

Airspace study

The most detailed type of review. It examines airspace arrangements, services and risks in depth and may take several months to complete.

What happens after a review

A review may find that current airspace arrangements are suitable and do not need to change.

If a review identifies issues, it may recommend changes to improve safety, efficiency or access. We assess any proposed changes through the Airspace Change Proposal process.

Last updated:
11 Jun 2026
Online version available at: https://www.casa.gov.au//operations-safety-and-travel/airspace/airspace-regulation/airspace-reviews-and-changes
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