New, major, upgraded or renewed infrastructure and rolling stock applicants have to follow a framework and seek an authorisation from the ORR before placing the infrastructure or rolling stock into service.

In this podcast we'll learn about the path to applying for authorisation and the role the ORR plays to help the applicants, such as those who oversaw the upgraded Gatwick Airport and Castleford stations, East Linton and Brent Cross West, London's newest mainline station.