Act 1997 placed each district within the ceremonial county of Durham or North Yorkshire, also splitting Stockton-on-Tees along the Tees. Town twinning Cleveland, as a conurbation of settlements, was twinned with: Cleveland, Ohio, United States Statistical NUTS statistical regions of the United Kingdom were also introduced in 1974. This caused South Humberside to be put with the reformed counties using the name Yorkshire, to form Yorkshire and Humber. South Tees came under North East of England region. See also Teesside Tees Valley Trolleybuses in Teesside Teesside Fettlers References External links Places in the Tees Valley History of County Durham History of the Borough of Hartlepool Metropolitan areas of England Counties of England established in 1974 Counties of England disestablished in 1996