41 CFR 302-2.3: -2.3 Types of relocations requiring a service agreement and the minimum period of service required.

Agencies must require the employee to sign a service agreement for appointments or transfers to, from or within CONUS or OCONUS, for renewal agreement travel, DoD School teachers, or assignment under the Government Employees Training Act (GETA). If the employee fails to sign a required service agreement, the agency will not pay relocation expenses. The minimum periods of service are:

(a) Within CONUS for a period of service of not less than 12 months following the effective date of appointment or transfer;

(b) OCONUS for an agreed upon period of service of not more than 36 months or less than 12 months following the effective date of appointment or transfer;

(c) Department of Defense Overseas Dependent School System teachers for a period of not less than one school year as determined under 20 U.S.C. chapter 25;

(d) For renewal agreement travel, a period of not less than 12 months from the date of return to the same or different overseas official station; and

(e) For assignment under GETA, not less than three times the length of the training period as prescribed by the head of the agency.