The bilateral WTO Agreement on Trade in Large Civil Aircraft (TLCA) of 1992 regulated the permitted levels of support for the European and American aviation industries. In October 2004, the US unilaterally withdrew from the TLCA, right as Boeing was about to lose its market leader status....

On 31 March 2011, the World Trade Organisation’s Dispute Settlement Body circulated the final Panel Report on US subsidies for the aircraft manufacturer Boeing. The long expected decision marks a turning point in the biggest trade dispute in WTO history, but its interpretations diverge...