Changes to Commission Decision of 28 March 2006 concerning the technical specification for interoperability relating to the control-command and signalling subsystem of the trans-European conventional rail system (notified under document number C(2006) 964) (2006/679/EC)
EU Decision 2006/679
Made by Commission Decision of 19 October 2009 amending Decisions 2006/679/EC and 2006/860/EC as regards technical specifications for interoperability relating to subsystems of the trans-European conventional and high-speed rail systems (notified under document C(2009) 7787) (2010/79/EC)
From legislation.gov.uk's record of changes, the official one: see it there.