5 C.F.R. § 839.302 Will my employer give me a written explanation?
Title 5 - Administrative Personnel
(a) Your employer must provide you with written notice of the error. The notice must include an explanation of the error, your options regarding the error, and any time limits that apply. (b) Your employer must inform you if they find that you do not have a retirement coverage error.
Title 5: Administrative Personnel
PART 839—CORRECTION OF RETIREMENT COVERAGE ERRORS UNDER THE FEDERAL ERRONEOUS RETIREMENT COVERAGE CORRECTIONS ACT
Subpart C—Employer Responsibility to Notify Employees
§ 839.302 Will my employer give me a written explanation?