A Special Event is a temporary arrangement that provides a transient service or radio installation.
The EASA related and Single European Sky Regulations will generally not be applied to temporary ATC and AFIS Units but the exact application of Regulations will be determined by the relevant Air Traffic Standards Regional Office. For temporary ATC Units, CAP 670 ATS Safety Requirements, Part B, Section 1, APP 04 provides relevant information. For Special Events related to non-ATS radio installations, the relevant Regional Office will again determine the appropriate Regulatory approach.
CAP 403 Flying Displays and Special Events: A Guide to the Safety and Administrative Arrangements should also be consulted and any enquiries related to the contents directed to Flight Operations Inspectorate - General Aviation.