This document contains performance requirements and recommendations for electrical lighting systems in the interiors of public transport urban rail vehicles, as defined in the CEN-CENELEC Guide 26, i.e. metro systems, trams, light rail, and local rail systems, under all operating and emergency conditions. This document applies only to new units. The application of this document for retro-fitting of existing units is subject to agreement between Contractors. This document also defines the requirements for testing and conformity assessment. This document does not address lighting installed in instruments or controls. This document does not address lighting installed for indication or effect purposes, including flashing lights and decorative lighting. NOTE 1 The requirements for interior lighting for heavy rail vehicles can be found in EN 13272-1. NOTE 2 The requirements for cab instrument lighting for heavy rail vehicles can be found in EN 16186-2.