[Code of Federal Regulations] [Title 5, Volume 2] [Revised as of January 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 5CFR839.1002] [Page 258] TITLE 5--ADMINISTRATIVE PERSONNEL CHAPTER I--OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) PART 839_CORRECTION OF RETIREMENT COVERAGE ERRORS UNDER THE FEDERAL ERRONEOUS Subpart J_Lost Earnings for Certain Make-up Contributions to the TSP Sec. 839.1002 Will OPM compute the lost earnings if my qualifying retirement coverage error was previously corrected and I made TSP make-up contributions? If you made contributions to the TSP after your qualifying retirement coverage error was previously corrected, OPM will compute the lost earnings on your make-up contributions to the TSP under the following circumstances: ------------------------------------------------------------------------ And were You were in: previously And under these corrected to: rules you elect: ------------------------------------------------------------------------ CSRS............................ FERS.............. FERS. CSRS Offset..................... FERS.............. .................. Social Security-Only............ FERS.............. No election required. Social Security-Only............ CSRS.............. .................. Social Security-Only............ CSRS Offset....... .................. ------------------------------------------------------------------------