[Code of Federal Regulations] [Title 5, Volume 2] [Revised as of January 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 5CFR843.403] [Page 333] TITLE 5--ADMINISTRATIVE PERSONNEL CHAPTER I--OFFICE OF PERSONNEL MANAGEMENT (Continued) PART 843--FEDERAL EMPLOYEES RETIREMENT SYSTEM--DEATH BENEFITS AND EMPLOYEE REFUNDS--Table of Contents Subpart D--Child Annuities Sec. 843.403 Proof of parentage. (a) A judicial determination of parentage conclusively establishes the paternity of a child. (b) Except as provided in paragraph (a) of this section, a child born to the wife of a married person is presumed to be the child of the wife's husband. This presumption may be rebutted only by clear and convincing evidence that the husband is not the father of the child. (c) When paternity is not established under paragraph (a) or (b) of this section, paternity is determined by a preponderance of the credible evidence as defined in Sec. 1201.56(c)(2) of this title.