Changes to Social Security (Unemployment, Sickness and Invalidity Benefit) 1989
S.I. 1989/872
Made by Social Security and Child Support (Jobseeker’s Allowance) 1996
1 change. All changes to Social Security (Unemployment, Sickness and Invalidity Benefit) 1989
From legislation.gov.uk's record of changes, the official one: see it there.