This European Standard describes the specific ??Design for PRM use?? requirements applying to rolling stock and the assessment of those requirements. The following applies to this standard: ?? the definitions and requirements describe specific aspects of ??Design for PRM use?? required by persons with disabilities and persons with reduced mobility as defined in the PRM TSI; ?? this standard defines elements which are universally valid for obstacle free travelling including toilets@ elements for sitting@ standing and moving and clearways and internal doors. The definitions and requirements of this standard are to be used for rolling stock applications; ?? this standard only refers to aspects of accessibility for PRM passengers. It does not define general requirements and general definitions; ?? this standard assumes that the rolling stock is in its defined operating condition; ?? where minimum or maximum dimensions are quoted these are absolute NOT nominal requirements. The 'Equipment and components' standard is written in three parts: ?? Part 1 contains: ?? toilets; ?? Part 2 contains: ?? handholds; ?? seats; ?? wheelchair spaces; ?? this document is Part 3 and contains: ?? clearways; ?? internal doors.