A complete list of orders affecting Middlesbrough Unitary Authority from 1973 to the present.
Where possible, a link has been provided to a copy of the order.
- County of Cleveland (Divided into 4 Districts) 1973
- The Local Government (Successor Parishes) Order 1973
- The English Non-metropolitan District (Names) Order 1973 (Cleveland Middlesbrough Dist)
- County of Cleveland (Electoral Divisions) Order 1973
- County of Cleveland (District Wards) Order 1973
- Order in Council Granting of Borough Charter to Middlesbrough District 1974
- Formation of New County of Cleveland 1974
- The Borough of Middlesbrough (Electoral Arrangements) Order 1976
- The County of Cleveland (Electoral Arrangements) Order 1985
- The Middlesbrough (Parishes) Order 1986
- The Cleveland (Structural Change) Order 1995
- The Cleveland (Further Provision) Order 1995
- The Borough of Middlesbrough (Electoral Changes) Order 2003