Changes made by Occupational and Personal Pension Schemes (Automatic Enrolment) 2010
S.I. 2010/772
Made to Personal Pension Schemes (Payments by Employers) 2000
1 change. All changes made by Occupational and Personal Pension Schemes (Automatic Enrolment) 2010
From legislation.gov.uk's record of changes, the official one: see it there.