On January 1, 2011, Regulations Amending the Canada Pension Plan Regulations came into force (SOR/2010-300). The regulations implement the legislative amendments in the Economic Recovery Act (stimulus) (which received Royal Assent on December 15, 2009) and are intended to restore and enhance the actuarial adjustments made to Canada Pension Plan retirement pensions taken before and after age 65 to their actuarially fair values. They set out a plan to implement those adjustments over a number of years.