The Program Manager (PM) is ultimately responsible for all aspects of the system development, including testing. The Deputy for Test and & Evaluation (T&E) is normally authorized by the PM to conduct all duties in the area of T&E. 
In government acquisition programs, there should be an element dedicated to the management of T&E. This element has the overall test program responsibility for all phases of the acquisition process. T&E expertise may be available through matrix support or reside in the Program Management Office (PMO) engineering department during the program’s early phases. 
By System Demonstration, the Program Management Office (PMO) should have a dedicated T&E manager. In the PMO, the Deputy for T&E would be responsible for defining the scope and concept of the test program, establishing the overall program test objectives, and managing test program funds and coordination. The Deputy for T&E should provide test directors (such as a joint test director) as required, and coordinate test resources, facilities, and their support required for each phase of testing. In addition, the Deputy for T&E or a staff member will be responsible for managing the Test and Evaluation Master Plan (TEMP), and planning and managing any special test programs required for the program. The Deputy for T&E will also review, evaluate, approve, and release for distribution contractor-prepared test plans and reports, and review and coordinate all appropriate government test plans. 
After the system is produced, the Deputy for T&E will be responsible for supporting production acceptance testing and the test portions of later increments, Preplanned Product Improvements (P3I) upgrades, or enhancements to the weapon system/acquisition. If the program is large enough, the Deputy for T&E will be responsible for all T&E direction and guidance for that program.