Did you know one control centre in Maastricht handles the upper airspace of four countries?

High above Belgium, Luxembourg, the Netherlands and north-west Germany, aircraft are guided by a single international team. EUROCONTROL’s Maastricht Upper Area Control Centre (MUAC) provides air traffic services in the upper airspace, from flight level 245 to flight level 660, or 24,500 to 66,000 feet, across the Brussels Upper Information Region, the Amsterdam Flight Information Region and the Hannover Upper Information Region.

The arrangement has deep roots. EUROCONTROL says its Permanent Commission decided on 28 February 1964 to set up the first international control facility on Dutch territory, and MUAC became operational on 29 February 1972. The Maastricht Agreement that governs it was signed on 25 November 1986 and amended on 1 July 2022. MUAC is a non-profit air navigation service provider run for four states, each of which keeps its own regulatory competence.

Its air traffic controllers, engineers and other specialists come from 30 nations. Since 2017 MUAC has also controlled military traffic in the upper airspace over Germany and the Netherlands, which EUROCONTROL describes as making it the first cross-border, civil-military air navigation service provider in Europe. In July 2001 it became the first air traffic control facility in the world to implement controller-pilot data-link communications operationally.

For passengers, this means the high-altitude part of a flight over the Benelux can be managed by a centre that is not national at all. Information about a specific flight, including any delay, should be checked with the airline operating it.