Changes to Welfare Reform and Pensions Act 1999 (Commencement No. 12) 2001
S.I. 2001/4049
Made by Welfare Reform and Pensions Act 1999 (Commencement No. 13) 2002
1 change. All changes to Welfare Reform and Pensions Act 1999 (Commencement No. 12) 2001
From legislation.gov.uk's record of changes, the official one: see it there.