In the UK economic pressure has made some trains lose their guards and become "driver-only operated (DOO)". The most recent axe of the conventional guard was on Southern rail in a 2-year dispute between the Train Operating Company and the workforce, which ultimately led to the guards losing their safety critical roles. British Rail first brought this in on some commuter services in London and Glasgow, as well as on almost all non-passenger trains. In 2003, a controversial amendment to the UK operational rule book moved part of the guard's safety and operational role to the driver. With rail service privatisation, train operating companies (TOC) attempted to bring in DOO to other network areas—c2c operating from London Fenchurch Street is an example of this. Currently, several titles describe a guard: "train manager", "train host", "conductor", and South West Trains and Merseyrail still use the term "guard". The role of the guard is set out by a mixture of the Railway Rule Book and train operating companies.