http://www.legislation.gov.uk/ukpga/1999/30/section/21/2014-05-13Welfare Reform and Pensions Act 1999An Act to make provision about pensions and social security; to make provision for reducing under-occupation of dwellings by housing benefit claimants; to authorise certain expenditure by the Secretary of State having responsibility for social security; and for connected purposes.1999-11-16texttext/xmlenStatute Law Database2026-04-13Expert Participation2014-05-13 Part III21Schedule 4 (which amends the sections about pensions inserted in the Matrimonial Causes Act 1973 by section 166 of the Pensions Act 1995) shall have effect.S. 21 wholly in force at 1.12.2000; s. 21 in force for certain purposes at Royal Assent see s. 89(1)(5); s. 21 in force at 1.12.2000 by S.I. 2000/1116, art. 2(a)1973 c. 18. 1995 c. 26. Pts. I-IV modified (6.4.2006) by Pensions Act 2004 (c. 35), ss. 254(3)(c), 322(1) (with s. 313); S.I. 2006/560, art. 2(3), Sch. Pt. 3Pts. I-IV: power to modify conferred (6.4.2006) by Pensions Act 2004 (c. 35), ss. 321(1)(d), 322(1); S.I. 2006/560, art. 2(3), Sch. Pt. 3Pts. I-IV: power to modify conferred (26.11.2008) by Pensions Act 2008 (c. 30), ss. 146(2)(c), 149(2)