CLASS I Candidate CSs (started by 2006) GENERAL ASM ATFM ATS COM NAV Reference CONOPS (2011) Software Assurance Level Cross Domain Information Sharing A-CDM UAV Systems Operation ASM Flexible Use Of Airspace Airspace Design ATFM IFPS User Manual Data Exchange Format E-ATFM (CFMU/IFPS) ATS OLDI Open ATC Architecture Model ATS Middleware (ACC-ACC only) Interoperability Of Flight Data Processing A-SMGSC (Level 1 & 2) COM NAV GBAS CAT I Procedures on Use of GPS SURV Surveillance Data Exchange AIS MET CLASS I Candidate CSs (started by 2006)
CLASS II Candidate CSs (started in 2007) GENERAL ASM ATFM ATS COM NAV DL Services over ATN in Continental Airspace DL Services over FANS1/A in Continental Airspace DL Services over ACARS in Continental Airspace ATS A-SMGCS (Level 3 & higher) Arrival Management Departure Management Surveillance Performance COM European AMHS Profile Telephone for ATC purposes Voice over IP (ground only) NAV SBAS Galileo, GNSS SURV Ground-based primary radar equipment Multilateration Equipment Surveillances Services using ADS-B AIS Generic Data Process & Principles Integrity - Data Origination Integrity - Data Publication MET Systems & Procedures For the use of MET info CLASS II Candidate CSs (started in 2007)
CLASS III Candidate CSs GENERAL Reference CONOPS (2020) ATFM-CDM ASM ATFM Advanced Data Exchange Formats ATS Interfaces CWP / Data Processing Interfaces with Flight Data Operator Positions Interfaces with Local centre Sub-systems Flight Plan Information Subscriber Systems ATS Middleware (inter & intra ACC) COM Directory services In Support of AMHS Voice over IP (including air/ground) NAV DME ground equipment ILS ground equipment MLS GBAS CAT II/III SURV AIS Aeronautical Information Exchange (AIXM) MET CLASS III Candidate CSs (started by 2008 or later)
CLASS IV Candidate CSs (started on demand) GENERAL ASM ATFM ATS COM Surveillance Data Processing COM Ground and mobile AM Stations (117.975 – 137 Mhz) HF radio equipment UHF for use by Civil ATC NAV NDB Ground equipment VOR, D-VOR ground equipment VHF Marker Beacon Ground equipment SURV Ground-based secondary radar equipment AIS CLASS IV Candidate CSs (started on demand) MET