The performance of air traffic control services on a domestic and international level is the basic measure of the success and quality of their providers.

In accordance with the legislation of the "Single European Sky", the performance of ANS CR in so-called reference periods is defined, monitored and evaluated in the following areas:

• safety
• capacity
• cost efficiency
• environmental protection

These criteria are detailed in the related performance standards:

• Performance plan of the CR and FAB CE
• Annual plan
• Business plan