Plain English guide for fatigue management rules

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Plain English Guide for fatigue management

Our plain English guide for fatigue management makes it easy to meet your obligations under Civil Aviation Order 48.1 Instrument 2019 and Subpart 137.Q of Civil Aviation Safety Regulations 1998.

This guide contains information about each appendix, with helpful hints explaining what’s expected of pilots and operators, and what might need to be considered when complying with the fatigue management rules.

Operators may choose to operate to the appendix (or in some cases the appendices) which is/are most appropriate for their operation. Prescriptive appendices range from those intended for simple operations to those intended for highly complex multi-crew operations where acclimatisation and crew augmentation are factors to be considered. A performance based FRMS appendix is also provided for those operators that wish to manage crew fatigue outside prescriptive limits.

The prescriptive appendices also address quite specific types of operation such as flight training, aerial work, medical transport and emergency services, ballooning, and aerial application (aeroplane).

Who will benefit from this guide

Pilots and operators will benefit from a shared understanding of the rules. By providing information in a simple easy to read form, CASA aims to facilitate this common understanding.


We encourage feedback, including whether the guide provides:

  • regulatory information in simple, easy-to-read and understandable language
  • a logical structure and format to the information.

You can send your feedback using our contact us form.


Occasionally we need to update content in the plain English guide. If you download a soft copy, it will always have the most up-to-date content.

You can request a version history of amendments through our contact us form.

Purchase from online store

Printed copies are also available from the CASA Online Store.

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