Cleveland was abolished in 1996 both as a county council and a non-metropolitan county, but the name Cleveland continues to be used unofficially in subsequent boundary reviews as presented by the Boundary Commission for England to describe the area covered by the former county for the purpose of the rules which strongly deter cross-council constituencies (spanning more than one local authority within its area). The area covers the unitary authorities of Hartlepool, Middlesbrough, Redcar and Cleveland, and Stockton-on-Tees. The constituency boundaries used up to the 2005 United Kingdom general election were drawn up when it was a county. The area is divided into 6 parliamentary constituencies – 5 borough constituencies and 1 county constituency.