Changes made by Commission Decision of 1 February 2008 concerning the technical specification of interoperability relating to the operation subsystem of the trans-European high-speed rail system adopted referred to in Article 6(1) of Council Directive 96/48/EC and repealing Commission Decision 2002/734/EC of 30 May 2002 (notified under document number C(2008) 356) (2008/231/CE)
EU Decision 2008/231
The legislation Commission Decision of 1 February 2008 concerning the technical specification of interoperability relating to the operation subsystem of the trans-European high-speed rail system adopted referred to in Article 6(1) of Council Directive 96/48/EC and repealing Commission Decision 2002/734/EC of 30 May 2002 (notified under document number C(2008) 356) (2008/231/CE) changes, newest first. Choose one to see each change.
From legislation.gov.uk's record of changes, the official one: see it there.