Part 91 of CASR General operating and flight rules

Rule status

Current

New basic operating rules for all pilots commenced on 2 December 2021. 

Part 91 of the Civil Aviation Safety Regulations (CASR) – General operating and flight rules, sets out the general operating rules for all pilots and operators. It consolidates all of the general operating and flight rules for Australian aircraft.

The rules cover:

  • documentation
  • flight crew and operator obligations
  • training
  • crew member obligations
  • safety of persons and cargo
  • classifications of operation
  • rules to prevent collision
  • communication
  • fuel
  • pre-flight planning and preparation
  • ground operations
  • aircraft performance and weight and balance
  • take-off and landing
  • low visibility operations
  • cruising levels and minimum heights
  • navigation
  • non-controlled aerodromes
  • icing
  • special flight operations
  • aircraft equipment
  • special certificates and permits
  • foreign aircraft
  • minimum equipment list
  • equipment.

Transition to new regulations

We have compiled information and resources about transitioning to the new regulations. Visit our Flight operations transition section to find out more. 

Who it affects

Part 91 applies to all aviation operations except drones. 

There are additional rules for pilots operating under an Air Operator's Certificate (AOC) or other certificate, or those conducting defined activities such as aerial work, aerial application and some recreational aviation activities. These rules are in other CASR Parts and may add to or turn off some Part 91 requirements – either completely or partially. 

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.

15 legislative instruments available

Part 91 Manual of Standards
Commences:
Fatigue management
Commences:
CAO 48.1
Cockpit voice recorders - Instrument 2007
Commences:
CAO 103.20

Non-legislative instruments

Non-legislative instruments apply to a particular person. Some exemptions to regulatory requirements in aviation regulations or a Manual of Standards may be listed here.

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

17 non-legislative instruments available

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.

32 guidance material available

Updated:

AC 91-21 provides guidance on the application for an approval to conduct an air display, and the management of air displays, in accordance with the relevant provisions of Part 91 of the Civil Aviation Safety Regulations 1998 (CASR).

Advisory Circular Version: 2.3
Updated:

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: 5.0
Updated:

Advisory Circular AC 91-17 provides information and guidance in the use of Electronic Flight Bags (EFB) as a replacement for paper in the aircraft.

Advisory Circular Version: 1.4
Updated:

Advisory circular AC 91-12 provides guidance on the conduct of practice autoland operations on CAT I runways, or on CAT II/III runways that are not subject to Air Traffic Control (ATC) protection of relevant instrument landing system (ILS) critical and sensitive areas.

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

Last updated date
Updated:
Online version available at: https://www.casa.gov.au//rules/regulatory-framework/casr/part-91-casr-general-operating-and-flight-rules
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