45 CFR 607.5: Hearing.

(a) Request for hearing. (1) An employee may file a petition for an oral or paper hearing in accordance with the instructions outlined in the agency's notice to offset.

(2) A hearing may be requested by filing a written petition addressed to the Chief Financial Officer stating why the employee disputes the existence or amount of the debt or, in the case of an individual whose repayment schedule has been established other than by a written agreement, concerning the terms of the repayment schedule. The petition for a hearing must be received by the Chief Financial Officer not later than fifteen (15) calendar days after the employee's receipt of the offset notice, or notice of the terms of the payment schedule, unless the employee can show good cause for failing to meet the filing deadline.

(b) Hearing procedures. (1) The hearing will be presided over by an impartial hearing official.

(2) The hearing shall conform to procedures contained in the Federal Claims Collection Standards, 4 CFR 102.3(c). The burden shall be on the employee to demonstrate that the existence or the amount of the debt is in error.