Commission decision of 21/XII/2007 concerning the technical specification of interoperability relating to "persons with reduced mobility" in the trans-European conventional and high-speed rail system. C(2007) 6633 final. Trans-European conventional and high speed rail system. Technical specification for interoperability. Scope : subsystems infrastructure and rolling stock. Aspect : accessibility for persons with reduced mobility. Annexes to the TSI. Scope : whole subsystems. Aspect : accessibility for persons with reduced mobility