Section 831.2504 - Additional interest due to administrative error(a) The employing agency, Clerk of the House of Representatives, or Secretary of the Senate, as appropriate, may pay any additional interest due on the deposit for volunteer or volunteer leader service as a result of its administrative error. OPM may pay any additional interest due on the deposit for VISTA service as a result of its administrative error.(b) The employing agency, Clerk of the House of Representatives, or Secretary of the Senate, as appropriate, shall set their own procedures for employees or Members to claim there was administrative error. OPM shall set its own procedures for claims of administrative error on its part.(c) The employing agency, Clerk of the House of Representatives, or Secretary of the Senate, as appropriate, shall determine if administrative error on its part caused an increase in interest due on the deposit amount for their employees. OPM shall determine if administrative error on its part caused an increase in interest due on the deposit amount.(d) OPM's final determination regarding a claim of administrative error on its part is not subject to the due process procedures described in 5 U.S.C. 8461(e) .