ii. PURPOSE ii.1 The guidance and information material contained in this Document concerns flight operations in the NAT Region. It deals primarily with approval for operations in the NAT Region and with the planning and management of such operations. It is addressed mainly to State aviation authorities/administrations and to Air Traffic Services (ATS) Provider States 1 and Operators. ii Some of the material in this Document will be of interest to pilots however, more detailed information for pilots is published in the "North Atlantic MNPS Airspace Operations Manual" (issued by the European and North Atlantic Office (EUR/NAT) of ICAO) and in the "North Atlantic International General Aviation Operations Manual" (issued by the Federal Aviation Administration (FAA. These two Manuals are produced on behalf of the North Atlantic Systems Planning Group (NAT SPG 2 ) and, although primarily intended for use by pilots, it is important that they are also used by Operators to ensure that aircrew for whom they are responsible are adequately trained and equipped for NAT operations. ii This guidance material does not contain everything relevant to air navigation in the NAT Region. In particular, it is important that reference be made toState Aeronautical Information Publications (AIPs) and/or regulations. For current information on the relevant documents to access and where they can be obtained from each ATC Provider, refer to Appendix D. Appropriate worldwide developments and those of a regional nature, resulting from meetings of the NAT SPG, are reflected in amendments which will be prepared and distributed by the EUR/NAT Office of ICAO. ii It is intended that this Edition of NAT DOC 001 will assist States to fulfil their responsibilities by ensuring that their aircraft are properly certified to operate in accordance with specified procedures, in particular, with those procedures applicable to MNPS and RVSM operations. 1 Provider States: Those States that provide ATS within the NAT Region, which are Canada, Denmark, Iceland, Ireland, Norway, Portugal, the United Kingdom and the United States. 2 The NAT SPG is a North Atlantic regional planning body established under the auspices of the International Civil Aviation Organisation (ICAO). This Group is responsible for developing the required procedures, services, facilities, plus aircraft and Operator approval standards employed in the NAT Region.