Airservices is Australia's air navigation service provider - we provide air traffic control, aviation rescue and fire fighting and air navigation services.

Civil Aviation Safety Regulation Part 175 – Airservices and You

Civil Aviation Safety Regulation Part 175 (CASR Part 175) under the Civil Aviation Act 1988 came into effect on 5 March 2015. This regulation establishes standards and legislative requirements for the quality and integrity of data and information used in air navigation. Specifically, information published in the Integrated Aeronautical Information Package, on aeronautical charts and contained within aeronautical navigation databases.

This is in compliance with the ICAO international Standards and Recommended Practices (SARPs) in Annex 4 – Aeronautical Charts, and Annex 15 – Aeronautical Information Services to the Chicago Convention.

CASR Part 175 has been developed to meet the changed accuracy requirements in air navigation that has occurred with the advancement of computer and satellite navigation systems. By collecting and supplying data with improved quality, stakeholders will be minimising the risk of corrupt, erroneous, late or omitted data affecting the safety of air navigation.

The CASR Part 175 obligations for aerodrome operators are different depending on the registration status of the aerodrome (certified or registered under CASR Part 139). CASR Part 139 is under review and enquiries about the differences can be directed to CASA.

Whether your aerodrome is registered, certified, unregistered or uncertified, as the aerodrome operator, you are required under CASR Part 175.D to notify Airservices of any new or updated information as well as appoint an Aeronautical Data Originator (ADO). The Data Product Specification will have minor differences for the different category of aerodrome certification. Aeronautical Data Originators for certified and registered aerodromes are also subject to CASR Subpart 175.E in relation to the collection of obstacle data in the vicinity of an aerodrome.

Important Information – which category do you belong to?

ADO: Certified, Registered and Uncertified aerodromes with ERSA FAC page

An Aeronautical Data Originator is the appointed person that provides the AIS Provider, Airservices, with up to date Aeronautical information or data.

Aeronautical Data Originators (CASR Subpart 175.D) are categorised as either an AIP responsible person and/or NOTAM authorised person.

Airservices has developed a standard form for the registration of Aeronautical Data Originators. If you provide information to Airservices that is included in the Integrated Aeronautical Information Package (e.g. the AIP Book, ERSA etc) and/or aeronautical charts, you must notify Airservices by filling in the Aeronautical Data Originator Form and returned by email.

Annual Review by the Aeronautical Data Originator

As the Aeronautical Data Originator, you must review, at least annually, the aeronautical data and information in the Integrated Aeronautical Information Package and aeronautical charts, for which you are responsible for. As part of CASR Subpart 175.D, the Aeronautical Data Originator must keep a record of the review for least 3 years, which CASA may want to inspect, on request.

Data Product Specification (DPS)

Airservices has developed different categories of Data Product Specification (DPS) where the Aeronautical Data Originator (ADO) form is included as an Appendix. The DPS specify the requirements and format of data (dynamic and static) to be submitted to Airservices. Please refer to Forms and Specification.

Forms and Specification

Uncertified ALA or HLS: No ERSA FAC page

For aerodromes that only appear in ERSA Codes or on aeronautical charts there is no regulatory requirement for a formal DPS; however the AIS needs to be able to obtain the data from the responsible entity, be able to trace the data to its origin and must keep it up to date.

To advise contact details for an ALA / HLS, Airservices has developed an Information Form that is required to be completed. Please refer to Forms and Specification.

Forms and Specification

Obstacle Owners

CASA assigned Airservices with the appropriate powers under CASR Subpart 175.E to request information about objects and structures in the interests of aviation safety. Where the obstacle owner have information available, the owners of those obstacles are obliged to respond to Airservices’ written request within 28 days, or as per any extension granted.

The purpose of CASR Subpart 175.E is to ensure that aeronautical information about obstacles is traceable back to the owner of the data. This is so that:

  • as it is passed through the AIS and is used in charting and databases it has enough quality assurance protocols around the supply process that reasonable assurance can be provided to the end-users (airline companies and pilots);
  • the data meets industry accuracy and resolution requirements; and
  • the data has not suffered from transmission corruptions.

This data will be used to support Airservices’ Aeronautical Information Management (AIM) function, including incorporating the information in aeronautical navigation databases and aeronautical charts.

A Part 175.E Data Supplier is defined as the person (includes Commonwealth, State, Territory or local government authorities) who own, control or operate objects and structures, such as:

  • buildings
  • bridges
  • cranes (permanent or temporary)
  • dams
  • electrical systems
  • fences
  • general utility
  • light houses
  • factories
  • poles (light poles, flag poles, telephone poles)
  • rigs (oil or gas)
  • signs
  • spires/steeples
  • industrial stacks
  • tanks (water, fuel)
  • towers
  • trees
  • vegetation
  • wind turbines and wind monitoring towers

Airservices already has procedures and capability for the deployment of CASR Subpart 175.E. We will endeavor our best effort to contact obstacle owners however it is important to note that in the interest of aviation safety, it is also your responsibility as the obstacle owner to notify Airservices, where Data Product Specification (DPS) information will be provided.

Forms and Specification

Organisations with Aeronautical Data Responsibilities

Aeronautical Data Service Providers

Third Party Data Service Providers of reformatted AIP information in Electronic Flight Bags (EFB) are regulated under the CASR Subpart 175.C.

They have an obligation to receive and Airservices has an obligation to provide aeronautical data:

  • that has enough quality assurance protocols around the supply process and reception;
  • where reasonable assurance can be provided to the end-users (airline companies and pilots);
  • that meets industry accuracy and resolution requirements; and
  • has not suffered from transmission corruptions.

A licence agreement will be required to ensure that an appropriate level of control over the data is applied when the data is used by commercial data suppliers. Airservices’ copyright and intellectual property is also recognised and protected.

More detailed questions relating to the obligations of CASR Subpart 175.C can be found on the CASA website­.

Questions around the availability of Airservices digital aeronautical information should in the first instance be sent to Airservices via the data portal.


There are no obligations for pilots under CASR Part 175.

The new laws regulate providers of aeronautical information that is included in manuals such as the Aeronautical Information Publication (AIP) Book, En Route Supplement Australia (ERSA), AIP MAP, AIP Supplements, Designated Airspace Handbook (DAH), Departure and Approach Procedures (DAP) and Notice to Air Men (NOTAM).

The CASR Part 175 regulation regulate the services and functions of the AIS Provider and downstream third party data services providers re-compiling information for Electronic Flight Bags.

More information