http://www.legislation.gov.uk/ukpga/1979/18/section/3Social Security Act 1979An Act to amend the law relating to social security.1992-07-01texttext/xmlenStatute Law Database2011-05-271994-02-07 Allowances and pensions3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F1