The origins of the Sheffield Teaching Hospitals NHS Foundation Trust can be traced back to the legislation under Section 5 of the National Health Service and Community Care Act 1990, enacted by statutory order in October 1991, which transferred control of medical care in the Sheffield area over from the Sheffield Health Authority to four separate NHS trusts with effect from 1 November 1991: the Central Sheffield University Hospitals NHS Trust (covering the Royal Hallamshire Hospital, the Jessop Hospital, Lodge Moor Hospital and Nether Edge Hospital); the Northern General Hospital NHS Trust; the Sheffield Children's NHS Trust; and the Weston Park Hospital NHS Trust. The trusts came into full operation on 1 April 1992, at which point the Sheffield Health Authority was dissolved.