scope:

PURPOSE. This Instruction:

a. Establishes policy and assigns responsibilities to define DoD PTTI management in accordance with the authority in Reference (a) and the guidance in Reference (b).

b. In accordance with Reference (b), provides procedures for coordination of PTTI requirements and maintenance of a PTTI reference standard (astronomical and atomic) for use by all DoD Components, other Federal agencies, DoD contractors, and related scientific laboratories. This includes programming the necessary resources to maintain the reference standard and to disseminate precise time to DoD users.

c. In accordance with Reference (c), establishes the PTTI Working Group as the primary advisory body to the DoD Positioning, Navigation, and Timing (PNT) Executive Committee and the Assistant Secretary of Defense for Networks and Information Integration/DoD Chief Information Officer (ASD(NII)/DoD CIO) on all PTTI matters.

APPLICABILITY. This Instruction applies to OSD, the Military Departments, the Office of the Chairman of the Joint Chiefs of Staff and the Joint Staff, the Combatant Commands, the Office of the Inspector General of the DoD, the Defense Agencies, the DoD Field Activities, and all other organizational entities within the DoD (referred to collectively in this Instruction as the "DoD Components").