Which of the following is NOT a part of the CAA's Aeronautical Information Service (AIS)?

The Aeronautical Information Service (AIS) is primarily responsible for the collection, publication, and distribution of aeronautical information essential for the safety, regularity, and efficiency of air navigation. This encompasses a variety of publications and notifications intended to inform pilots and operators about the operating environment.

The UK Aeronautical Information Publication (UK AIP), Notices to Airmen (NOTAMs), and Aeronautical Information Circulars (AICs) all fall within the domain of AIS. The UK AIP provides comprehensive details on airspace, airports, and navigation routes. NOTAMs are crucial for communicating urgent information about flight operations, such as temporary changes to airspace or hazards. AICs offer additional guidance or important information regarding regulation changes or procedural updates.

Air Traffic Control (ATC) notifications, on the other hand, are not part of the AIS; instead, they relate more to the operational aspects of air traffic management and the instructions provided directly to aircraft during flight by ATC. These notifications are typically specific to traffic control environments and do not encompass the broad aeronautical information published under the AIS umbrella.