Green Line is a commuter coach brand in the Home counties of England. The trademark is owned by Arriva, with services operated by Arriva Shires & Essex and Reading Buses. Green Line had its origin in the network of coach services established by the London General Omnibus Company (LGOC) in the 1920s and 1930s, being absorbed into the London Passenger Transport Board in 1933. After World War II, the network was part of London Transport Executive/London Transport Board, and from 1970 to 1986 was operated by London Country Bus Services.