41 CFR § 302-3.223
What happens if I violate my new service agreement under a tour renewal assignment?
June 9, 2020
If you fail to complete your period of service under your new service agreement for reasons that are not acceptable to your agency, you must pay the Government:
(a) All transportation and per diem expenses that you received during your service agreement period for tour renewal travel of you and your immediate family;
(b) Transportation expenses for family members who traveled directly from your former post of duty to your current post of duty; and
(c) All transportation expenses for shipment of household goods from your former post to your current post of duty.