There have been no revisions to the STMA procedures with the opening of Prestwick Centre. The route structures (STARS and SIDS) have not been significantly amended since their introduction in 1992, although there have been changes to the way traffic is handed over between the TMA sectors, Glasgow and Edinburgh.
The approach units are still located at the airports.
PC uses Multi Radar Tracking (MRT), where information from all offering radars is fed into one "basket" and the best return is then displayed, including Mode S Downloaded Parameters.
The detailed procedures for operating the TMA are contained within the PC, Glasgow, Edinburgh and Prestwick MATS Part 2s, but these documents are commercially confidential.