Provisions that would give FERS employees credit for unused sick leave when computing their retirement annuity were included in Public Law 111-84, the Fiscal 2010 Defense Authorization Act, signed by the President on October 28, 2009. The provision will be phased in over four years. FERS employees who retire between the date of the law’s enactment (October 28, 2009) and December 31, 2013, will receive a 50 percent credit for their unused sick leave. FERS employees who retire on or after January 1, 2014, will receive full credit for their unused sick leave. OPM will calculate any change in the Postal Service’s unfunded liability or surplus in the CSRDF. The law may necessitate higher retirement contribution rates for FERS employees in the future. There will be no change to the FERS retirement rate contribution in 2010.