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All IATA airlines are now IOSA registered
1 April 2009

The International Air Transport Association (IATA) announced that all 224 of its member airlines, comprising 93% of all scheduled international air traffic, are listed on the IATA Operational Safety Audit (IOSA) registry.
IOSA is the global industry standard for airline operational safety management. The IOSA registry (www.iata.org/registry) now consists of 308 airlines, 224 of which are IATA members.
At the 2006 Annnual General Meeting IOSA was made a condition of IATA membership with three milestones. By 31 December 2006, member airlines had to complete contractual arrangements for an IOSA audit. By 31 December 2007, all audits needed to be completed. And by 31 December 2008, all audit findings had to be closed and the carrier noted on the IOSA registry. Failure to meet any of the deadlines resulted in termination of IATA membership, with effect 90 days after the milestone.
A total of 9 carriers had their memberships terminated as a result of not meeting the 2006 or 2007 milestone deadlines. A further 8 resigned their memberships at the end of 2008 as they needed more time to complete preparations for a successful audit. One airline lost its IATA membership on 31 March 2009 as a result of being unable to complete the registration process. (IATA)