Changes made by 1999/569/EC: Commission Decision of 28 July 1999 on the basic parameters for the command-and-control and signalling subsystem relating to the trans-European high-speed rail system (notified under document number C(1999) 2475) -
EU Decision 1999/569
No changes made by 1999/569/EC: Commission Decision of 28 July 1999 on the basic parameters for the command-and-control and signalling subsystem relating to the trans-European high-speed rail system (notified under document number C(1999) 2475) - are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.