5 C.F.R. § 537.107 – Service agreements.

(a) Before an employing agency makes any loan payments for an employee, the employee (or job candidate) must sign a written service agreement to complete a specified period of service with the agency and to reimburse the agency for the student loan repayment benefit when required by § 537.109. The service agreement also may specify any other employment conditions the agency considers to be appropriate, including the employee's (or job candidate's) position and the duties he or she is expected to perform, his or her work schedule, his or her level of performance, and the geographic location of his or her position. (See §§ 537.108 and 537.109.) The service agreement may address the possibility that, during the period the agreement is in effect, the agency may modify the agreement to provide student loan repayment benefits in addition to those fixed in the agreement based on contingencies or conditions specified in the agreement.
(b) The minimum period of service to be established under a service agreement is 3 years, regardless of the amount of student loan repayment benefits authorized. The agency and the employee may mutually agree to modify an existing service agreement, subject to the limitations at § 537.106(c)(2), to provide additional student loan repayment benefits for additional service without the need for an entirely new service agreement (which would require a new 3-year minimum service period). Periods of leave without pay, or other periods during which the employee is not in a pay status, do not count toward completion of the required service period. Thus, the service completion date must be extended by the total amount of time spent in non-pay status. However, as provided by 5 CFR 353.107, absence because of uniformed service or compensable injury is considered creditable toward the required service period upon reemployment.
(c) A service agreement made under this part in no way constitutes a promise of, or right or entitlement to, appointment, continued employment, or noncompetitive conversion to the competitive service. This condition should be stated in the service agreement.
(d) The service period begins on the date specified in the service agreement. That beginning date may not be—
1. (1) Earlier than the date the service agreement is signed; or
2. (2) Earlier than the date the individual begins serving in the position for which he or she was recruited (when student loan repayment benefits are approved to recruit a job candidate to fill an agency position).
(e) The service agreement must contain a provision addressing whether the individual would be required to reimburse the paying agency for student loan repayment benefits if he or she voluntarily separates from the paying agency to work for another agency before the end of the service period. (See § 537.109(b)(2).)
(f) The agency may include in a service agreement specific conditions (in addition to those required by law) that trigger the loss of eligibility for student loan repayment benefits and/or a requirement that the employee reimburse the agency for student loan repayment benefits already received. (See §§ 537.108(a)(3) and 537.109(a)(2).) However, a service agreement may not require reimbursement based on—
1. (1) An employee's failure to maintain performance at a particular level (unless the employee is separated based on unacceptable performance); or
2. (2) An involuntary separation for reasons other than misconduct, unacceptable performance, or a negative suitability determination under 5 CFR part 731 (e.g., an involuntary separation resulting from a reduction in force or medical reasons).