Note: we have had some conflicting feedback over this one in the past. This is our choice of answer at the moment as it is not confirmed, and some of our reasoning below. Please put any exam feedback in the comments or email it to [email protected], thank you.

ICAO Annex 15
Chapter 2. Definitions

Aeronautical information service (AIS). A service established within the defined area of coverage responsible for the provision of aeronautical information/data necessary for the safety, regularity and efficiency of air navigation.

• "Air traffic control only."
  • This is incorrect. An AIS is responsible for many things, not just air traffic control.
• "Air traffic services."
  • We believe that this is correct, as air traffic services have their own section within the AIP (which is part of the AIS), as well as covered by AICs, NOTAMs, etc. which also fall under the AIS.
• "Flight licenses."
  • This is not part of an AIC, and would be more part of the governing regulations of a country.
• "Air operations."
  • Whilst we previously had this reported as the correct answer, we have more recent reports saying that it is not correct. Some parts of air operations are covered in the AIS, as it covers the AIP, AIRAC, AICs, NOTAMs, etc., but we think that the examiner might be thinking about the regulations such as ICAO 8168 (PANS-OPS) and EU-OPS, which are not part of an AIS, of course, so has made this incorrect.