Part 138 of CASR Aerial work operations

Rule status


Part 138 of the Civil Aviation Safety Regulations (CASR) sets out the rules for operators conducting aerial work operations. Aerial work operations include external load, dispensing and task specialist operations.

It incorporates the relevant requirements directly in a nationally consistent manner. Operators in this category hold an aerial work certificate. 

If you conduct other operations, such as air transport, you will need to comply with other CASR flight operations Parts.

Visit our flight operations transition section to find out more. 

Who it affects

This rule affects all operators and pilots who conduct aerial work operations.

All operators and pilots also need to comply with Part 91 of CASR General operating and flight rules. Keep in mind Part 138 may add to or turn off some Part 91 requirements either completely or partially.

Aeroplane operators may choose whether to conduct dispensing operations under Part 138 or Part 137 of CASR Aerial application operations.

Requirements for the dropping or releasing of any substance overlap for Part 138 and Part 137. Note: Part 137 only applies to aeroplanes.

Legislative instruments

Legislative instruments apply to a broad range of people. These instruments include Manuals of Standards and exemptions to regulatory requirements.

Instruments related to this part will display in this space or you can view our list of legislative instruments.

4 legislative instruments available

Part 138 Manual of Standards
Fatigue management
CAO 48.1

Non-legislative instruments

Guidance material

Advisory material provides advice and guidance to explain particular regulatory requirements of a CASR Part. Guidance material relating to this part will appear in this space or you can view all our guidance material.

9 guidance material available


Acceptable means of compliance and guidance material (AMC-GMs) for Part 138 Aerial work operations.

Acceptable Means of Compliance and Guidance Material, Flight ops - General resource Version: 2.2

Advisory Circular AC 119-07 and AC 138-03 - This multi-part AC provides guidance to all persons involved in the aviation industry who are seeking an improved understanding of the process of management of change.

Advisory Circular, Flight ops - Management of change Version: 2.3

Advisory Circular AC 1-02 provides information to the aviation industry, detailing the requirements to have and maintain an exposition or operations manual to meet the regulatory requirements of CASR and the MOS.

Advisory Circular, Flight ops - General resource Version: 3.2

Advisory Circular AC 1-03 provides advice on CASR regulations pertaining the flight operations. They include Parts 91, 119, 121,133, 135 and 138 of CASR, specifically for those transitioning to these regulations on 2 December 2021.

Advisory Circular, Flight ops - General resource Version: 4.1

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

Advisory Circular, Flight ops - General resource Version: 1.1

Multi-Part Advisory Circular AC 91-19, AC 121-04, AC 133-10, AC 135-12 and AC 138-10 provides guidance regarding the requirements for safety briefing cards and passenger safety briefings, instructions and demonstrations for operations.

Advisory Circular Version: 1.0

Multi-Part Advisory Circular 91-13, AC 133-09 and AC 138-06 provides guidance on the conduct of helicopter operations using NVIS. This publication supports and expands upon the content of Civil Aviation Safety Regulation (CASR) Part 91, Part 133 and Part 138 and relevant Manual of Standards (MOS).

Advisory Circular Version: 1.1

Supporting resources

Supporting resources related to this part will appear in this space. These are used in conjunction to support the formal guidance material listed above.

9 supporting resources available

This document is intended to assist persons who will conduct aerial work operations under Part 138 of CASR to prioritise their actions to transition to the new flight operations regulations.

The purpose of this document is to present and summarise the key elements of these determinations in plainer English, as the legal instruments themselves are relatively lengthy, repetitive and complex.

The document supports the commencement of the flight operations regulations and represents the definitions from across the legislative suite as it will appear when those rules commence on 02 December 2021.

This document lists regulations from Parts 91 and 138 of CASR against provisions in Parts 7 to 19 of CAR, together with the location of requirements (if any) in the Manuals of Standards for Parts 91 and 138.

This document lists regulations from Parts 91 and 138 of CASR against CAO subsections, together with the location of requirements (if any) in the Manuals of Standards for Parts 91 and 138.

Impact of new flight operations regulations on flight crew licencing exams. The introduction of the new flight operations regulations on 2 December 2021 will mean changes to the various flight crew licensing (FCL) theory exams.

This Guide assists operators using the associated CASR Flight Operations Sample Exposition / Operations Manual template in Word format. The contents in this Guide, the associated Word, and MAAT templates has been structured in a logical order and provides clear references to the legislative requirements.

Date published:
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