County Borough of Teesside councils in 1918, and was a pioneer operator of electric trolleybuses. The three undertakings adopted a common livery of turquoise and cream in 1967 in preparation for their amalgamation. On 1 April 1968 the combined fleet became Teesside Municipal Transport. Teesside initially operated a mixed fleet of trolleybuses and omnibuses, but on 4 April 1971 trolleybus operation ended. A formal closure ceremony was held two weeks later. Before 1968 the Teesside area was served by three police forces: Middlesbrough Borough Police, Durham Constabulary and the North Riding of Yorkshire Constabulary. It was originally envisaged that the new county borough would
Trolleybuses in Teesside initially with cream above. From 1932 some buses had silver roofs, later painted white. In the 1940s and 50s there were 3 cream bands, later reduced to 2. Some wartime buses were utility grey. The Roman capitals fleetname with shading was replaced in 1932 by a block logo. Trolleybuses in Teesside The Teesside trolleybus system once served the conurbation of Teesside, in the North East of England. Opened on , it was unusual in being a completely new system that was not replacing any previously operating tramway network. By the standards of the various now defunct trolleybus systems in the