This document specifies the requirements for hygiene and cleanliness on railway vehicles and where appropriate the necessary interfacing infrastructure equipment.

The areas specifically concerned on the railway vehicle include toilets, toilet doors, hand wash facilities, baby changing facilities, feminine hygiene articles management and fresh water supply. In the catering areas for water supply and disposal systems only.

This document also includes extensive guidance and best practice to assist in the design, manufacture, operation and maintenance of railway vehicle hygiene equipment.