22 C.F.R. § 34.18
(b) Authorities—(1) Debts arising out of erroneous payments of pay and allowances. 5 U.S.C. 5584 provides authority for waiving in whole or in part debts arising out of erroneous payments of pay and allowances, and travel, transportation and relocation expenses and allowances, if collection would be against equity and good conscience and not in the best interests of the United States.
(iv) If the deciding official finds no indication of fraud, misrepresentation, fault, or lack of good faith on the part of the employee or any other person having an interest in obtaining a waiver of the claim, the employee is not automatically entitled to a waiver. Before a waiver can be granted, the deciding official must also determine that collection of the claim against an employee would be against equity and good conscience and not in the best interests of the United States. Factors to consider when determining if collection of a claim against an employee would be against equity and good conscience and not in the best interests of the United States include, but are not limited to:
(2) Debts arising out of advances in pay. 5 U.S.C. 5524a provides authority for waiving in whole or in part a debt arising out of an advance in pay if it is shown that recovery would be against equity and good conscience or against the public interest.
(i) Factors to be considered when determining if recovery of an advance payment would be against equity and good conscience or against the public interest include, but are not limited to:
(3) Debts arising out of advances in situations of authorized or ordered departures. 5 U.S.C. 5522 provides authority for waiving in whole or in part a debt arising out of an advance payment of pay, allowances, and differentials provided under this section if it is shown that recovery would be against equity and good conscience or against the public interest.
(i) Factors to be considered when determining if recovery of an advance payment would be against equity and good conscience or against the public interest include, but are not limited to:
(4) Debts arising out of advances of allowances and differentials for employees stationed abroad. 5 U.S.C. 5922 provides authority for waiving in whole or in part a debt arising out of an advance of allowances and differentials provided under this subchapter if it is shown that recovery would be against equity and good conscience or against the public interest.
(i) Factors to be considered when determining if recovery of an advance payment would be against equity and good conscience or against the public interest include, but are not limited to:
(5) Debts arising out of employee training expenses. 5 U.S.C. 4108 provides authority for waiving in whole or in part a debt arising out of employee training expenses if it is shown that recovery would be against equity and good conscience or against the public interest.
(i) Factors to be considered when determining if recovery of a debt arising out of employee training expenses would be against equity and good conscience or against the public interest include, but are not limited to:
(6) Under-withholding of life insurance premiums. 5 U.S.C. 8707(d) provides authority for waiving the collection of unpaid deductions resulting from under-withholding of Federal Employees' Group Life Insurance Program premiums if the individual is without fault and recovery would be against equity and good conscience.
(ii) Factors to be considered when determining whether recovery of unpaid deduction resulting from under-withholding would be against equity and good conscience include, but are not limited to: