ETOPS-like rules have been in use since late 70's. It is an evolving standard with different craft types being approved for different ETOPS. While some current

ETOPS-like rules have been in use since late 70's. It is an evolving standard with different craft types being approved for different ETOPS. While some current frames are rated ETOPS 330 or 370, this type of operation began officially with planes allowed to do only 90-minute ETOPS. If flying commercial over oceans, it is either ETOPS, A380, or a current type of 747 (747-8).