The Commission may waive debts, to the extent authorized by 5 U.S.C. 5584,arising,when,and,fault,or. Interest, penalties, and administrative costs may also be waived under 31 U.S.C. 3717(h) and 31 CFR 901.9(g), on a case-by-case basis, if collection would be against equity and good conscience and not in the best interests of the United States.