and related activities delegated to such Component Acquisition Executive by the Under Secretary for Management. (iv) Each Level 1 major acquisition program concerned has written documentation showing that it has a Department-approved acquisition program baseline and it is meeting agreed-upon cost, schedule, and performance thresholds. (v) The Under Secretary for Management provides written notification to the appropriate congressional committees of the decision to delegate the authority to the relevant Component Acquisition Executive. (4) Relationship to Under Secretary for Science and Technology (A) In general Nothing in this subsection shall diminish the authority granted to the Under Secretary for Science and Technology under this Act. The Under Secretary for Management and the Under Secretary for Science and Technology shall cooperate in matters related to the coordination of acquisitions across the Department so that investments of the Directorate of Science and Technology are able to support current and future requirements of the components of the Department. (B) Operational testing and evaluation The Under Secretary for Science and Technology shall— (i) ensure, in coordination with relevant component heads, that major acquisition programs— (I) complete operational testing and evaluation of technologies and systems to be acquired or developed by major acquisition programs to assess operational effectiveness, suitability, and cybersecurity