Library Search Library Sort by Most recentA-ZZ-ARelevance Select date Toggle facet Select option Last 6 months (4) Last year (3) Select activity Toggle facet Select option Air navigation services performance review (5) Airspace design and utilisation (2) Civil-military cooperation in aviation (1) Communications, navigation and surveillance (3) Facet deactivate Forecasting (5) Network performance (5) Optimised operational performance | Network Manager (1) Safety (1) Standardisation (3) Select product Toggle facet Select option ACAS Safety Bulletin (1) Facet deactivate EUROCONTROL Specifications (2) Facet deactivate Select topic Toggle facet Select option ASTERIX (2) Reset filtersCommunications, navigation and surveillance Facet deactivate ACAS Safety Bulletin Facet deactivate EUROCONTROL Specifications Facet deactivate Search Library Sort by Most recentA-ZZ-ARelevance 3 results found Helicopter low level route operations in controlled and uncontrolled airspace Version 1.3 7 October 2019 Download CAT253 - ASTERIX Category 253 Specification Version 10.0 1 September 2019 Download CAT048 - EUROCONTROL Specification for Surveillance Data Exchange ASTERIX Version 1.27 18 August 2019 Download Contact us × First name Last name Your Email Message I agree that my data can be processed in accordance with EUROCONTROL's privacy and data protection policy. We take data management seriously. At EUROCONTROL, we manage your data responsibly and do not provide it to third parties. We only use and process your data to answer your question and for quality control purposes. We apply our internal data protection rules, which are aligned with the General Data Protection Regulation, to all of our data-processing. Read our full privacy and data protection policy to learn more.