Yes, you are required to sign a service agreement when transferring within or outside the continental United States or performing renewal agreement travel. The minimum periods of service are:
(a)
Within the continental United States for a period of service of not less than 12 months following the effective date of your transfer;
(b)
Outside the continental United States for an agreed upon period of service of not more than 36 months or less than 12 months following the effective date of transfer;
(c)
Department of Defense Overseas Dependent School System teachers for a period of not less than one school year as determined under chapter 25 of title 20, United States Code; and
(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.