[Code of Federal Regulations] [Title 5, Volume 3] [Revised as of January 1, 2001] From the U.S. Government Printing Office via GPO Access [CITE: 5CFR1600.9] [Page 177] TITLE 5--ADMINISTRATIVE PERSONNEL CHAPTER VI--FEDERAL RETIREMENT THRIFT INVESTMENT BOARD PART 1600--EMPLOYEE ELECTIONS TO CONTRIBUTE TO THE THRIFT SAVINGS PLAN--Table of Contents Subpart C--Program of Contributions Sec. 1600.9 Contributions in whole numbers. Except in the case of a 7.5 percent contribution made by a CSRS employee as described in Sec. 1600.10(b) of this part, contributions may be made only in whole percentage amounts or whole dollar amounts.