Subject: Communications, Navigation, Surveillance / Air Traffic Management (CNS/ATM)

Approved: October 30, 1985

Revised: June11, 1993

Revised: May 6, 1999

I. Need for Policy

IBAC affiliates are among the significant worldwide users of Communications (C), Navigation (N ) and Surveillance (S) systems which enable and support the provision of Air Traffic Management (ATM).

C, N, S and ATM service providers and those bodies engaged in CNS /ATM planning and implementation therefore need to be made aware of the needs of business aviation.

International operations conducted by business aircraft are global in scope, require access to, and services within, international airspace and the sovereign airspace of all States to enable safe, efficient and economic flight operations.

ICAO has developed a comprehensive "Global Air Navigation Plan" for CNS/ATM systems which comprises technical, operational, economic, financial, legal and institutional advice and guidance to regional planning and implementation groups, States, users and service providers. This Plan is the cornerstone of global planning for the future air navigation system and is intended to ensure the harmonization and coordination of evolving Regional Air Navigation Plans.

ICAO also recognized that the detailed planning and implementation activities are the responsibility of each Region and States, taking into consideration the needs of aviation, economic conditions, availability of States' resources and geopolitical responsibility of each State to its neighbor, to the region, and to the world. ICAO the has further recognized the need for multilateral cooperation in order to provide facilities and/or services that extend beyond the airspace serviced by a single State.

The ICAO Air Navigation Commission, with the support of its panels and the ICAO Secretariat, progressing the technical work necessary for international standardization, including development of an ATM operational concept.

In other international forums, complementary efforts are underway to develop systems technical specifications and to harmonize the regulations pertaining to the control and use of the systems.

II. Policy

The current communications, navigation, surveillance/air traffic management (CNS/ATM) needs of the business aviation community are stated by the Positions herein. It is intended that these serve as a basis from which to extrapolate business aviation's needs as CNS/ATM developments and implementation evolve.

Support of IBAC for CNS/ ATM implementation is conditioned by a fundamental issue……positive cost-benefit for operators.

Ill. Positions

To ensure that CNS/ATM systems under development and progressively implemented are responsive to the needs and requirements of business aviation the following should be taken into consideration:

- recognition that the existing over-all air navigation system is incapable of providing the level of services required for current and foreseen business aircraft operations throughout all phases of flight.

- that business aviation is prepared to pay through user charges* a pro rata allocation public-benefit and other considerations included of the costs of implementation and operation of systems that will augment and subsequently supplant those referred to above and, in so doing, will satisfy the CNS/ATM needs stated below.

* for elaboration, refer to PP/ Paper 30-2

A. Communications needs are as follows:

1. direct controller pilot communications (voice and data)

2. that air traffic control communications have priority over operational control and non-safety communication.

3. air ground voice and data communications for the exchange of operational information, including real time weather data.

4. that passengers have in-flight access to public correspondence services for voice and data.

B. Navigation needs are as follows:

1. high integrity, high accuracy and all-weather world -wide navigation service

2. RNP-based, evolutionary operational application related to phase of flight and culminating in sole-means system approval.

3. international system standards which will ensure that the airborne sub-system(s) can comply with the full range of RNP types and will be usable on a global basis ie without the need to accommodate regional or national divergences.

C. Surveillance needs are as follows:

1. Monitoring of the separation of aircraft and flight profiles throughout all phases of flight.

2. Monitoring of terrain clearance for approach and departure operations is encouraged.

3. Monitoring of the movement areas at aerodromes with high movement rates and/or with low operating minima viz Cat II / III.

Source of Policy: (1) Original, Governing Board, London, October 29-30, 1985

(2) Revision, Governing Board, Edinburgh, June 11-12, 1993

(3) Revision, Governing Board, Montreal, May 6, 1999