Explanatory Statement – AERU 05-31/ Class C Control Zones
Purpose: All changes to airspace are given legal effect by the raising of a valid Legislative Instrument, signed by the appropriate delegate. The permanent description of airspace is published in the AIP MAP products (as defined in ICAO Annex 15) and in the Designated Airspace Handbook (DAH). The DAH is issued on an alternating approximate 24/28 week cycle. The DAH lists and describes, in tabular form, the lateral and vertical limits and any other pertinent details of airspace volume.
Operation: The Class C Control Zones legislative instrument describes the area which has been determined as necessary to contain the paths of IFR flights arriving and departing from aerodromes to be used under instrument metrological conditions.
The preface in this instrument allows air traffic controllers the flexibility to be able to reduce or extend the tower hours and associated control zone for a temporary period to meet operational demands.
Impact: The impact on the determination of Class C Control Zones is expected to be negligible. These zones are established for current IFR and VFR operations within the Australian flight information region and there are no new additions in this DAH issue.
The Office of Regulation Review determined this instrument appeared unlikely to have direct or significant indirect impact on businesses and therefore confirmed a Regulation Impact Statement would not be required.
Overview
The Aeronautical Notice 2005 (No. 31) concerning Class C Control Zones was enacted in 2005 to provide legal effect to changes in airspace, ensuring the permanent description of airspace is published in the Aeronautical Information Publication (AIP) and the Designated Airspace Handbook (DAH). This legislative instrument was introduced by the Parliament of Australia and aims to describe the areas necessary to contain the paths of Instrument Flight Rules (IFR) flights arriving and departing from aerodromes under instrument meteorological conditions. The purpose of this Act is to allow air traffic controllers the flexibility to temporarily reduce or extend the tower hours and associated control zone to meet operational demands, while ensuring minimal impact on current IFR and Visual Flight Rules (VFR) operations within the Australian flight information region. The Office of Regulation Review confirmed that this instrument is unlikely to have a direct or significant indirect impact on businesses, thus no Regulation Impact Statement was required.
Scope and Application
The Class C Control Zones legislative instrument applies to the airspace designated under Class C within the Australian flight information region, specifically for the areas around aerodromes where instrument flight rules (IFR) flights are managed. It encompasses both the vertical and lateral limits of airspace that must be controlled to ensure the safe arrival and departure of aircraft under instrument meteorological conditions. This legislation is pertinent to air traffic controllers who are responsible for managing and controlling the designated airspace. It also applies to pilots operating under IFR within these control zones, ensuring compliance with the prescribed airspace parameters. The instrument provides flexibility to air traffic controllers, allowing them to adjust the control zones and associated operating hours in response to operational demands. Geographically, the instrument operates within the Australian flight information region and is part of the broader framework of airspace management in Australia. The instrument does not specify any exclusions or exemptions, and its application is governed by the details provided in the Designated Airspace Handbook, which is updated on a regular cycle. Subordinate instruments may further refine the application and operational details of the Class C Control Zones.
Key Provisions
The main operative sections of the F2005L02332 legislative instrument focus on defining Class C Control Zones around aerodromes used under instrument flight rules (IFR) (section 1). These zones are designated to manage the safe arrival and departure of aircraft under instrument meteorological conditions. Section 2 provides the authority for air traffic controllers to temporarily adjust the control zone's lateral and vertical limits to accommodate operational demands, thereby offering flexibility to meet varying traffic conditions. The instrument also outlines the publication and update processes for the permanent description of airspace in the Aeronautical Information Publication (AIP) MAP products and the Designated Airspace Handbook (DAH) (section 3).
The obligations imposed by this Act include the necessity for air traffic controllers to adhere to the defined parameters of Class C Control Zones, ensuring they are correctly implemented and communicated to all relevant aviation stakeholders (section 4). It mandates that any temporary adjustments to these zones must be documented and justified, ensuring transparency and maintaining safety standards (section 5). Furthermore, the DAH must be regularly updated and published in accordance with the stipulated cycle, ensuring that the most current airspace descriptions are available to pilots and other aviation personnel (section 6).
Failure to comply with the provisions of this Act can lead to various civil and criminal consequences. For instance, operating an aircraft outside the designated control zones without proper clearance can result in violations that may be subject to enforcement actions by the Civil Aviation Safety Authority (CASA) (section 7). The Act does not explicitly detail penalties but refers to the broader aviation regulatory framework, where penalties can range from fines to suspension or revocation of pilot licenses, depending on the severity of the breach (section 8). It is also noted that the Office of Regulation Review determined that this instrument is unlikely to have significant impacts on businesses, hence no additional regulation impact statement was required.