policy, processes, and procedures used in the development of instrument and spacecraft for space and Earth science missions. The review shall build on prior work carried out for the 2011 Government Accountability Office report on Space and Mission Defense Acquisitions: Periodic Assessment Needed to Correct Parts Quality Problems in Major Programs , released in 2011, and include an assessment of— (1) the extent to which NASA is following established policy related to the selection, acquisition, traceability, testing, handling, packaging, storage, and application of materials and mechanical and electrical parts and the reasons for any deviations