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
Teesside Steelworks to a 6% reduction in carbon emissions from the United Kingdom in 2016. The remainder of the site still operational (Teesside Beam Mill and ancillary support services at Lackenby and the deep-water bulk handling terminal), was sold by Tata Steel to investment firm Greybull Capital on 1 June 2016. As part of the deal, the historic British Steel name was resurrected. The new company includes the UK sites of Skinningrove and Scunthorpe as well as the Hayange rail plant in northern France. The site is situated alongside the A66 and A1085 dual carriageways. Main access is via the Lackenby and