CASA 413/05 - Designation – of airspace - Direction – broadcast requirements and frequency

Administered by Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts

Legislation au F2005L02947 Not in force Legislative Instrument

Legislation content

Explanatory Statement

Civil Aviation Act 1988

Designation of airspace

Direction  Broadcast requirements and frequency

 

Section 98 of the Civil Aviation Act 1988 (the Act) provides that the Governor-General may make regulations for the purposes of the Act and in relation to the safety of air navigation.

 

Paragraph 99A (1) (b) of the Civil Aviation Regulations 1988 (CAR 1988) provides that CASA may designate airspace within defined horizontal and vertical limits as an area in which broadcast requirements apply. Paragraphs 99A (3) (a) and (b) provide that CASA may give directions specifying the broadcast requirements that apply to those designated areas, and the radio frequencies on which such broadcasts must be made. Subregulation 99A (4) provides that if CASA gives a direction it must publish details of it in the AIP.

 

Instrument CASA 202/05, made under subregulation 99A of CAR 1988, designates areas in which only radio-equipped aircraft may fly. It prescribes mandatory broadcast zones (MBZ) in which mandatory broadcasts requirements apply, states what those requirements are and provides for the radio frequencies on which those broadcasts are to be made.

 

Instrument CASA 203/05, made under subregulation 99A of CAR 1988, designates other areas known as Common Traffic Advisory Frequency areas (CTAF) in which non-radio-equipped aircraft may fly. However, when flying in these areas, radio-equipped aircraft must make certain broadcasts, on certain frequencies.

 

Bathurst Aerodrome is designated in a CTAF area. The Bathurst Car Races (Races) on 8 and 9 October 2005 will cause a significant increase in air traffic movements at Bathurst Aerodrome. For safety, this will require MBZ rather than existing CTAF broadcast procedures and therefore the relevant airspace will be designated as MBZ during this event, except for an area reserved for helicopter operations that will be declared by Airservices Australia as a Temporary Restricted Area R961. An AIP Supplement will be published setting out the change.

 

Apart from changes in format, the instrument is identical to CASA 504/04 issued last year for the Races. For the duration of the Races, it designates the airspace within a 15 NM radius of Bathurst Aerodrome (excluding R961) as an MBZ and directs the broadcast requirements, and radio frequency for them. The existing CTAF requirements under CASA 203/05 are suspended for Bathurst Aerodrome while the MBZ is in effect.

 

The instrument will have the effect that at Bathurst Aerodrome, the pilot in command of an aircraft, intending to fly through the area without landing, must, immediately on entering the area, broadcast certain information about the aircraft, including its callsign and type, its position and level and the pilot's intentions.

 

However, if the pilot in command intends to land at the aerodrome, the pilot must broadcast not only identifying information but also more detailed information on altitude, navigation and plan for landing.

 

 

 

Similarly, when taxiing for take-off from Bathurst Aerodrome, the pilot in command must broadcast information identifying the aircraft, aerodrome and runway, the intended destination or direction and if instrument flight rules (I.F.R.) are to be used. Information identifying the aircraft and runway, and a statement of the pilot’s immediate intentions must be broadcast just before the aircraft enters the actual take-off runway.

Legislative Instruments Act 2003

Under subsections 5 (1) and (4) of the Legislative Instruments Act 2003 (LIA) the directions are a legislative instrument, subject to tabling and disallowance in the Parliament under sections 38 and 42 of the LIA.

 

Consultation under section 17 of the LIA has not been undertaken in this case because the instrument is essential for safety during the period of the Races and will apply to all aircraft flying through or at the aerodrome.

 

The instrument, which will be registered on the Federal Register of Legislative Instruments (FRLI), will commence at 6am local time on 8 October 2005, and will stop having effect at 10pm local time on Sunday 9 October 2005.

 

The instrument has been made on behalf of CASA by the Acting Manager, Airways and Aerodromes, Air Transport Operations Group, a delegate of CASA under subregulation 7 (1) of CAR 1988.

 

[Instrument number CASA 413/05]

 

Overview

The Civil Aviation Act 1988 was enacted to provide a legislative framework for the regulation of civil aviation in Australia, focusing on ensuring the safety of air navigation. The Act empowers the Governor-General to make regulations for the purposes of the Act, and the Civil Aviation Safety Authority (CASA) to designate airspace and specify broadcast requirements and frequencies within that airspace to ensure safe air navigation. This is evident in the recent instrument CASA 413/05, which designates specific areas around Bathurst Aerodrome as mandatory broadcast zones during the Bathurst Car Races on 8 and 9 October 2005, temporarily suspending existing Common Traffic Advisory Frequency areas to accommodate increased air traffic safely. The instrument mandates that pilots of aircraft entering these areas must broadcast specified information, enhancing safety by ensuring that all pilots, whether intending to land or merely passing through, communicate critical details such as their aircraft’s identification, position, and intentions. This legislative measure was made under the authority of the Legislative Instruments Act 2003, which governs the creation and operation of legislative instruments, and was enacted without consultation due to its urgent safety requirements.

Scope and Application

The Civil Aviation Act 1988 applies to all aircraft and pilots operating within Australia, ensuring compliance with safety regulations concerning air navigation. Under section 98 of the Act, the Governor-General has the authority to enact regulations for air safety, while section 99A of the Civil Aviation Regulations 1988 allows the Civil Aviation Safety Authority (CASA) to designate specific airspace areas where particular broadcast requirements and frequency allocations apply. These regulations are particularly relevant during events that significantly increase air traffic, such as the Bathurst Car Races. CASA has issued specific instruments, like CASA 202/05 and CASA 203/05, to designate mandatory broadcast zones (MBZ) and Common Traffic Advisory Frequency (CTAF) areas, respectively. During the Bathurst Car Races, the airspace within a 15 NM radius of Bathurst Aerodrome is designated as an MBZ, requiring specific broadcast procedures to ensure safety. This instrument, CASA 413/05, is a legislative instrument under the Legislative Instruments Act 2003 and is subject to the disallowance provisions in Parliament. It is registered on the Federal Register of Legislative Instruments and is in effect from 6am on 8 October 2005 until 10pm on 9 October 2005.

Key Provisions

The main operative sections of this legislation concern the designation of specific airspaces and the broadcast requirements for these areas. Section 98 of the Civil Aviation Act 1988 allows the Governor-General to make regulations for the safety of air navigation, and under paragraph 99A (1) (b) of the Civil Aviation Regulations 1988 (CAR 1988), the Civil Aviation Safety Authority (CASA) can designate airspaces where particular broadcast requirements apply. Furthermore, CASA can provide directions specifying the broadcast requirements and the radio frequencies for these broadcasts under paragraphs 99A (3) (a) and (b). According to subregulation 99A (4), any such direction must be published in the Aeronautical Information Publication (AIP). CASA 202/05 and CASA 203/05 instruments designate mandatory broadcast zones (MBZ) and Common Traffic Advisory Frequency (CTAF) areas respectively. These regulations are crucial for ensuring air traffic safety during the Bathurst Car Races on 8 and 9 October 2005, where the airspace within a 15 NM radius of Bathurst Aerodrome will be designated as an MBZ. The Act imposes several obligations and requirements on the parties and entities it governs. Primarily, pilots in command of aircraft intending to fly through the designated areas must broadcast specific information immediately upon entering the area. This includes identifying information about the aircraft, its position, level, and intentions. If the pilot intends to land at the aerodrome, they must provide more detailed information on altitude, navigation, and landing plans. Additionally, when taxiing for take-off, pilots must broadcast information about the aircraft, aerodrome, runway, intended destination, and whether instrument flight rules will be used. Just before entering the take-off runway, the pilot must broadcast information identifying the aircraft, runway, and the pilot's immediate intentions. These obligations are essential for maintaining communication and ensuring the safety of all aircraft operating in these areas. Breaches of the broadcast requirements specified in the Civil Aviation Regulations 1988 can result in significant consequences. While the Act does not explicitly state the penalties for non-compliance, failure to adhere to the broadcast requirements could be considered a violation of the regulations. Such violations could lead to enforcement actions by CASA, including fines, sanctions, or other regulatory measures. Additionally, non-compliance could potentially result in civil or criminal liability under other sections of the Civil Aviation Act 1988, depending on the circumstances. It is crucial for all pilots and aircraft operators to comply with these broadcast requirements to ensure the safety of air navigation and avoid any legal repercussions.

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Aviation Law
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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.