http://www.legislation.gov.uk/ukpga/1971/56/schedule/2/paragraph/4/enactedPensions (Increase) Act 1971Prices and inflationPensionsEmployment terms and conditionsKing's Printer of Acts of Parliament2020-01-10SCHEDULESSCHEDULE 2Official PensionsPART IState PensionsCivil Service4A pension payable under the Superannuation Acts 1965 and 1967.