As used in this subpart-
(1) “Essential contractor service” means a service provided by a firm or individual under contract to DoD to support mission-essential functions, such as support of vital systems, including ships owned, leased, or operated in support of military missions or roles at sea; associated support activities, including installation, garrison, and base support services; and similar services provided to foreign military sales customers under the Security Assistance Program. Services are essential if the effectiveness of defense systems or operations has the potential to be seriously impaired by the interruption of these services, as determined by the appropriate functional commander or equivalent.
(2) “Mission-essential functions” means those organizational activities that must be performed under all circumstances to achieve DoD component missions or responsibilities. Failure to perform or sustain these functions would significantly affect DoD’s ability to provide vital services or exercise authority, direction, and control.
