World Air Ops | NAT | Doc 007 MNPS Guidance

Guidance concerning Air Navigation in and above the NAT MNPSA CHAPTER 3It should be noted that these routes are subject to occasional changes and are re-published/updated on aregular AIRAC 56-day cycleUS East Coast Transitions3.3.3 Aircraft Operators are encouraged to refer to FAA Air Traffic Control System CommandCenter Advisory Database (www.fly.faa.gov) for NAT Advisory Message, published daily, for specifiedtransitions from select U.S. airports to the NAT Entry Points. Additionally, route advisories are published, asnecessary, to address special route requirements eastbound and westbound through the New York OceanicFIR/CTA.Canadian Domestic Track Systems3.3.4 Within Canada there are three track systems: the Northern Control Area tracks (NCAs), theSouthern Control Area tracks (SCAs) and the Northern Organised Track System (NOROTS); these providelinks for NAT traffic operating between Europe and North America to central and western North Americanairports. Track procedures and details are published in Transport Canada’s Aeronautical InformationManual (TC AIM). The co-ordinates of the NOROTS are published daily via NOTAM.Routes between North America and the Caribbean area3.3.5 An extensive network of routes linking points in the United States and Canada withBermuda, the Bahamas and the Caribbean area are defined in the New York OCA to the west of 60°W. Thisnetwork has been known as the West Atlantic Route System (WATRS). Since 5 June 2008 the originalWATRS airspace together with portions of the Miami Oceanic airspace and the San Juan FIR have beendesignated as “WATRS Plus Airspace”. 50NM lateral separation standards are employed here on the basisof RNP approval status. Details of these routes and associated procedures are contained in the United StatesAIP. See the following web page for information on WATRS.http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/enroute/oceanic/ .Irish/UK Domestic Route Structures3.3.6 The UK AIP and AIP Ireland both specify the domestic routes to be used for westboundNAT traffic, based upon entry points into oceanic airspace.North Atlantic European Routing Scheme (NERS)3.3.7 The NERS exists to provide an interface between NAT oceanic and European domesticairspace. The scheme is similar in concept to the NARS which has been in use in North America by NATtraffic for many years. It consists of a numbered series of predetermined routes, designed to accommodateeastbound traffic exiting the NAT en route to a number of major European airports.3.3.8 The NERS valid for a particular day will be published in the NAT Track Message but willonly be used when the traffic density warrants their use. They are not expected to be published every day.Full details of all NER routings together with associated procedures are published in CFMU RouteAvailabilty Document Annex NAT:http://www.cfmu.eurocontrol.int/cfmu/opsd/public/standard_page/operational_services_rad.htmlNAT Doc 007 17 Edition 2010