We regulate health and safety for the entire mainline rail network in Britain, as well as London Underground, light rail, trams and the heritage sector.

We regulate Network Rail and other railway networks including the Channel Tunnel and High Speed 1.

We undertake a range of work to improve the passenger experience in areas such as compensation, retailing of train tickets and passenger accessibility.

If a railway operator wants to access the railway network, they have to apply to us for a track access agreement.

We issue licences and licence exemptions to railway operators.

We are responsible for monitoring and enforcing the performance and efficiency of Highways England.