PUBLIC LAW 106-65—OCT. 5, 1999 113 STAT. 545 Subtitle C—Ballistic Missile Defense SEC. 231. SPACE BASED INFRARED SYSTEM (SBIRS) LOW PROGRAM. (a) PRIMARY MISSION OF SBIRS Low SYSTEM.— The primary mission of the system designated as of the date of the enactment of this Act as the Space Based Infrared System Low (hereinafter in this section referred to as the "SBIRS Low system") is balHstic missile defense. The Secretary of Defense shall carry out the acquisition program for that system consistent with that primary mission. (b) OVERSIGHT OF CERTAIN PROGRAM FUNCTIONS.— With respect to the SBIRS Low system, the Secretary of Defense shall require that the Secretary of the Air Force obtain the approval of the Director of the Ballistic Missile Defense Organization before the Secretary— (1) establishes any system level technical requirement or makes any change to any such requirement; (2) makes any change to the SBIRS Low baseline schedule; or (3) makes any change to the budget baseline identified in the fiscal year 2000 future-years defense program. (c) PRIORITY FOR ANCILLARY MISSIONS. —The Secretary of Defense shall ensure that the Director of the Ballistic Missile Defense Organization, in executing the authorities specified in subsection (b), engages in appropriate coordination with the Secretary of the Air Force and elements of the intelligence community to ensure that ancillary SBIRS Low missions (that is, missions other than the primary mission of ballistic missile defense) receive proper priority to the extent that those ancillary missions do not increase technical or schedule risk. (d) MANAGEMENT AND FUNDING BUDGET ACTIVITY.— The Secretary of Defense shall transfer the management and budgeting of funds for the SBIRS Low system from the Tactical Intelligence and Related Activities (TIARA) budget aggregation to a nonintelligence budget activity of the Air Force. (e) DEADLINE FOR DEFINITION OF SYSTEM REQUIREMENTS. — The system level technical requirements for the SBIRS Low system shall be defined not later than July 1, 2000. (f) DEFINITIONS.—For purposes of this section: (1) The term "system level technical requirements" means those technical requirements and those functional requirements of a system, expressed in terms of technical performance and mission requirements, including test provisions, that determine the direction and progress of the systems engineering effort and the degree of convergence upon a balanced and complete configuration. (2) The term "SBIRS Low baseline schedule" means a program schedule that includes— (A) a Milestone II decision on entry into engineering and manufacturing development to be made during fiscal year 2002; (B) a critical design review to be conducted during fiscal year 2003; and (C) a first launch of a SBIRS Low satellite to be made during fiscal year 2006.
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