Military Careers, commissioning programs - Marine Corps Times

Notification

To be protected under the law, reservists must notify employers of an upcoming military absence as soon as possible. This should be done in writing, but spoken notification is acceptable.

If the reservist cannot make the notification, an “appropriate officer” of the service can do it. Still, the law provides for times when, because of “military necessity,” no notice is required. Such necessity must be determined by the secretary of defense, but usually it would be a military contingency requiring rapid mobilization.

Reservists do not have to provide employers with a copy of their orders. However, most officials recommend doing so to avoid confusion.