The Pensions Increase (Parliamentary Pensions) Regulations 1973
These Regulations apply the Pensions (Increase) Act 1971 to the pensions of former Members of Parliament subject to certain modifications. Members whose pensions were awarded under the Ministerial Salaries and Members' Pensions Act 1965 or under section 8 of the Parliamentary and other Pensions Act 1972 and Members who retired under the Parliamentary and other Pensions Act 1972 with pensions based partly on salary before 1st January 1972 and partly on salary after that date received increases in their pensions which were modified under the Pensions Increase (Parliamentary Pensions) Regulations 1972. That modification restricted increases so as to secure that the pension concerned did not exceed the pension awarded to a Member retiring on 31st December 1972 with a similar length of service.