[Code of Federal Regulations] [Title 5, Volume 3] [Revised as of January 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 5CFR1639.30] [Page 256] TITLE 5--ADMINISTRATIVE PERSONNEL CHAPTER VI--FEDERAL RETIREMENT THRIFT INVESTMENT BOARD PART 1639_CLAIMS COLLECTION--Table of Contents Subpart B_Salary Offset Sec. 1639.30 Non-waiver of rights by payments. An employee's involuntary payment of all or any portion of a debt being collected under this subpart must not be construed as a waiver of any rights which the employee may have under 5 U.S.C. 5514 or any other provisions of a written contract or law, unless there are statutory or con tractual provisions to the contrary.