Changes to Personal and Occupational Pension Schemes (Perpetuities) 1990
S.I. 1990/1143
Made by Personal and Occupational Pension Schemes (Preservation of Benefit and Perpetuities) 1996
1 change. All changes to Personal and Occupational Pension Schemes (Perpetuities) 1990
From legislation.gov.uk's record of changes, the official one: see it there.