(a) CSRS.—Section 8334(l) of title 5, United States Code, is amended by adding at the end of the following:
“(5) (A) In calculating and processing the deposit under paragraph (1) with respect to an employee, Member, or annuitant, if an employing agency of such employee, Member, or annuitant makes an administrative error that causes additional interest assessed to accrue on the deposit, the employing agency may pay, on behalf of the employee, Member, or annuitant, any additional interest assessed due to the administrative error.
“(B) In calculating and processing the deposit under paragraph (1) with respect to an employee, Member, or annuitant, if the Office of Personnel Management makes an administrative error that causes additional interest assessed to accrue on the deposit, the Office of Personnel Management may pay, on behalf of the employee, Member, or annuitant, any additional interest assessed due to the administrative error.
“(C) For purposes of subparagraph (A), the Secretary of the Senate or the Chief Administrative Officer of the House of Representatives, as appropriate, shall be considered the employing agency of a Member or congressional employee.
“(D) The Director of the Office of Personnel Management shall issue such regulations as are necessary to carry out this paragraph.”.
(b) FERS.—Section 8422(f) of title 5, United States Code, is amended by adding at the end of the following:
“(5) (A) In calculating and processing the deposit under paragraph (1) with respect to an employee, Member, or annuitant, if an employing agency of such employee, Member, or annuitant makes an administrative error that causes additional interest assessed to accrue on the deposit, the employee, Member, or annuitant’s employing agency may pay, on behalf of the employee, Member, or annuitant, any additional interest assessed due to the administrative error.
“(B) In calculating and processing the deposit under paragraph (1) with respect to an employee, Member, or annuitant, if the Office of Personnel Management makes an administrative error that causes additional interest assessed to accrue on the deposit, the Office of Personnel Management may pay, on behalf of the employee, Member, or annuitant, any additional interest assessed due to the administrative error.
“(C) For purposes of subparagraph (A), the Secretary of the Senate or the Chief Administrative Officer of the House of Representatives, as appropriate, shall be considered the employing agency of a Member or congressional employee.
“(D) The Director of the Office of Personnel Management shall issue such regulations as are necessary to carry out this paragraph.”.
(c) Authorization of payments.—All payments from the Office of Personnel Management authorized by subsections (a) and (b) shall be paid from the Civil Service Retirement and Disability Fund, and together with administrative expenses incurred by the Office in administering these subsections, shall be deemed to have been authorized to be paid from that Fund, which is appropriated for the payment thereof.