These Regulations modify the provisions relating to the deferral of entitlement to retirement pension that are inserted in Schedule 5 to the Social Security Contributions and Benefits Act 1992 (“the 1992 Act”) by Schedule 11 to the Pensions Act 2004 (c. 35) (“the 2004 Act”). They also modify the new Schedule 5A relating to the deferral of entitlement to shared additional pension that is inserted in the 1992 Act by Schedule 11 to the 2004 Act.