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Guidance concerning Air Navigation in and above the NAT MNPSA


Exceptions - Special Operations


NAT ATS Providers may approve moving or stationary temporary airspace reservations

within MNPS Airspace, for the benefit of State or Military Aircraft Operating Agencies to accommodate Military Exercises, Formation Flights, Missile Firing or UAV Activities. Procedures are established in respect of the requests for and management of such reservations. Whenever such reservations might impinge upon other flights in the NAT Region, relevant AIS is published, including, if appropriate, annotations on the

NAT Track Message.


Manned Balloon flights can be operated in or through the NAT Region. They are, however,

required to avoid MNPS Airspace and must be meticulously co-ordinated with affected ATS Authorities many months in advance.

    • 1.2


      • 1.2.1

        All flights within NAT MNPS Airspace must have the approval of either the State of

Registry of the aircraft, or the State of the Operator. Aircraft operating in RVSM Airspace are required to be compliant with the altimetry minimum aircraft system performance specification (MASPS) and hold an issued approval. Approval for MNPS operations will require the checking by the State of Registry or State of the Operator, of various aspects affecting navigation performance. These aspects include: the navigation equipment used, together with its installation and maintenance procedures; plus the crew navigation procedures employed and the crew training requirements.


Since MNPS Airspace is now designated as RVSM airspace at all levels (i.e. FL290-410

inclusive) specific State RVSM Approval is also required to operate within MNPS Airspace. RVSM Approvals prescribe both airworthiness requirements to ensure aircraft height-keeping performance in accordance with the RVSM MASPS, and also crew operating procedures. In general RVSM Approvals granted by most States are not regionally specific but are valid for world-wide operations. However, some crew operating procedures, particularly those to be followed in contingency situations, are specific to the airspace environment. Such procedures for use in MNPS airspace vary from those adopted in a domestic airspace environment in which radar surveillance and DCPC are available (see Chapter 9 & Chapter 12). States provide approval of these procedures specific to MNPS or Oceanic airspace operations in different ways. It may be explicitly addressed in the general RVSM Approval. It may be included as an element of the MNPS Approval or it may be a stated item of the Operations Specifications. Nevertheless, however provided, all NAT crews/operators must be State approved specifically for NAT RVSM operations and each aircraft intended to be flown in MNPS airspace must have State RVSM Airworthiness Approval.


There are times when MNPS and/or RVSM approval documentation may need to be shown

to “suitably authorised persons”, e.g. during a ramp inspection or on similar occasions.


In order to adequately monitor NAT MNPS Airspace, State aviation authorities shall

maintain a database of all MNPS and RVSM approvals that they have granted for operations within MNPS Airspace. States must also provide data on RVSM approved airframes to the North Atlantic Regional Monitoring Agency (RMA), which is maintained by the North Atlantic Central Monitoring Agency (NAT CMA). The CMA database facilitates the tactical monitoring of aircraft approval status and the exclusion of

non-approved users.


In the case of approvals for IGA operations, the following points are emphasised:


aircraft MNPS and RVSM approvals constitute a package covering equipment standards, installation, maintenance procedures and crew training;

NAT Doc 007


Edition 2010

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