
An original Single European Sky (SES I) package came into force in 2004. At the time the greatest problem in air traffic management was congestion in the air and subsequent delays hence it also became the main focus of SES I, together with safety.
During the past years the ATM (Air Traffic Management) situation has changed somewhat and whilst safety and capacity are still major issues, the picture has become more varied with a greater emphasis on environment and more recently due to the fuel price crisis, on cost efficiency.
Additionally, the regulatory approach has been changed due to requests from Member States and stakeholders for a less prescriptive approach ("better regulation").
The updated Single European Sky (SES II) package will tackle all these challenges.
Press Release from 17 December 2010: New Regulation on Single European Sky charging to make flying cheaper and more performing
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