5 CFR 842.505 - Reduction in annuity supplement because of excess earnings.
(2) Any annuity supplement payable during the year in which an individual loses entitlement to the annuity supplement by reason of § 842.503(c) is reduced by excess earnings in the test year divided by the number of months for which the annuity supplement is payable.
(d) Failure to furnish earnings and estimated earnings in the form or at the times prescribed by OPM is cause to suspend payment of the supplement until the annuitant establishes to the satisfaction of OPM that he/she continues to be eligible for the supplement.
(e) The reductions described in paragraphs (a) and (b) of this section are not subject to the due process procedures described in 5 U.S.C. 8461(e).