The Franco-Spanish consortium responsible for the Aragnouet-Bielsa Tunnel was created on June 2nd, 2008, as enshrined in the Bayonne Treaty signed between the Aragon Government (Spain) and France’s Upper Pyrenées Department. This entity conforms to a unified binational policy dictating maintenance and winter service on a cross-border itinerary through the heart of the Pyrenées range, at a maximum elevation of 1,880 m, hence exposed to the risks typical of high mountain roads. This highway connection, including the tunnel and all access routes, is managed under an operations and maintenance agreement signed with the contractor Ferroser in November 2012.