As used in this subpart—

“Increased performance of security-guard functions,”

(1) In the case of an installation or facility where no security-guard functions were performed as of September 10, 2001, the entire scope or extent of the performance of security-guard functions at the installation or facility after such date; and

(2) In the case of an installation or facility where security-guard functions were performed within a lesser scope of requirements or to a lesser extent as of September 10, 2001, than after such date, the increment of the performance of security-guard functions at the installation or facility that exceeds such lesser scope of requirements or extent of performance.

“Senior mentors” means retired flag, general, or other military officers or retired senior civilian officials who provide expert experience-based mentoring, teaching, training, advice, and recommendations to senior military officers, staff, and students as they participate in war games, warfighting courses, operational planning, operational exercises, and decision-making exercises.