Advisory Circulars

Advisory Circulars (AC) give advice and guidance on how to meet the Civil Aviation Safety Regulations (CASR). Each AC explains certain rules or standards in more detail.

Search by keyword such as the title or number of an AC. You can also use the category or rule part filters to show AC related to a particular topic or Part of CASR.

Showing 1 - 15 of 196 results

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AC 138-01 - Part 138 core concepts

Updated:

Advisory Circular AC 138-01 provides high level guidance and explanation regarding Part 138 and its core concepts.

Advisory Circular Flight operations Part 138 of CASR Guidance materials Version
3.1
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AC 138-01 Part 138 core concepts (PDF, 1.34 MB)

AC 91-23 - ADS-B for enhancing situational awareness

Updated:

Advisory Circular AC 91-23 provides advice to aircraft owners and pilots about enhancing their situational awareness…

Advisory Circular Flight operations Part 91 of CASR Guidance materials Version
2.0
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AC 91-23 ADS-B for enhancing situational awareness (PDF, 1.14 MB)

AC 91-14 - Pilots' responsibility for collision avoidance

Updated:

Advisory circular AC 91-14 provides advice for pilots on collision avoidance through the 'see and avoid' principle. It…

Advisory Circular Flight operations Part 91 of CASR Guidance materials Version
1.2
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AC 91-14 Pilots' responsibility for collision avoidance (PDF, 706.27 KB)

AC 91-16 - Wake turbulence

Updated:

Advisory Circular AC 91-16 provides foundational information on wake vortex behaviour, alert pilots to the hazards of…

Advisory Circular Flight operations Part 91 of CASR Guidance materials Version
1.2
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AC 91-16 Wake turbulence (PDF, 1.43 MB)

AC 131-02 - Part 131 Aircraft - operations

Updated:

Advisory circular AC 131-02 provides guidance and acceptable means of compliance on operational matters for operators…

Advisory Circular Flight operations Part 131 of CASR Guidance materials Version
4.0
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AC 131-02 Part 131 Aircraft - operations (PDF, 1.19 MB)

AC 138-05 - Aerial work risk management

Updated:

Advisory Circular AC 138-05 provides advice for Part 138 operators on how to comply with the risk assessment provisions…

Advisory Circular Flight operations Part 138 of CASR Guidance materials Version
3.0
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AC 138-05 Aerial work risk management (PDF, 860.58 KB)

Multi-Part AC 119-07 and AC 138-03 - Management of change for air transport and aerial work operators

Updated:

Advisory Circular AC 119-07 and AC 138-03 - This multi-part AC provides guidance to all persons involved in the…

Advisory Circular Flight operations Part 119 of CASR Part 138 of CASR Guidance materials Version
2.5
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Multi-Part AC 119-07 and AC 138-03 Multi-Part Management of change for air transport and aerial work operators (PDF, 1.34 MB)

Multi-Part AC 119-11 and AC 138-02 - Training and checking systems

Updated:

Multi-Part Advisory Circular AC 119-11 and AC 138-02 provides guidance on establishing and managing a training and…

Advisory Circular Flight operations Part 119 of CASR Part 138 of CASR Guidance materials Version
6.1
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Multi-Part AC 119-11 and AC 138-02 Training and checking systems (PDF, 1.58 MB)

AC 139.C-07 - Strength rating of aerodrome pavements

Updated:

AC suspended for amendment to rating method from PCN to PCR. Expected re-release - 30 September 2025.

Advisory Circular Aerodromes Part 139 of CASR Guidance materials Version
1.0
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AC 147-02 - Approved Part 147 training organisations

Updated:

Advisory Circular AC 147-02 provides CASR Part 147 a list of the MTOs approved to carry out aircraft maintenance…

Advisory Circular Airworthiness Part 147 of CASR Guidance materials Version
8.6
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AC 147-02 Approved Part 147 training organisations (PDF, 5.64 MB)

AC 139.C-11 - Commissioning of aerodrome lighting systems

Updated:

Advisory circular AC 139.C-11 provides general information and advice on the requirements and method of commissioning…

Advisory Circular Aerodromes Part 139 of CASR Guidance materials Version
1.1
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AC 139.C-11 Commissioning of aerodrome lighting systems (PDF, 1.47 MB)

AC 91-25 - Fuel and oil safety

Updated:

Advisory Circular AC 91-25 provides guidance on procedures and practices to ensure the safety of fuelling operations.

Advisory Circular Flight operations Part 91 of CASR Guidance materials Version
1.2
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AC 91-25 Fuel and oil safety (PDF, 1.24 MB)
Online version available at: https://www.casa.gov.au//index.php/resources-and-education/publications/guidance-material/advisory-circulars
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