[Code of Federal Regulations] [Title 20, Volume 1] [Revised as of April 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 20CFR226.13] [Page 457-458] TITLE 20--EMPLOYEES' BENEFITS CHAPTER II--RAILROAD RETIREMENT BOARD PART 226_COMPUTING EMPLOYEE, SPOUSE, AND DIVORCED SPOUSE ANNUITIES --Table of Contents Subpart B_Computing an Employee Annuity Sec. 226.13 Cost-of-living increase in employee vested dual benefit. If the employee's annuity begins June 1, 1975 or later, a cost-of- living increase is added to the total vested dual benefit amount. This increase is based on the cost-of-living increases in social security benefits during the period from January 1, 1975, to the earlier of the date the employee's annuity begins or January 1, 1982. The increases are effective on June 1 of each year through [[Page 458]] 1981. The percentage increase for annuities that begin June 1, 1981, or later is 81 percent.