Section 3307(d) of title 41, United States Code, is amended by adding at the end the following new paragraph: (4) Agencies shall document the results of market research in a manner appropriate to the size and complexity of the acquisition. . 5803. Analysis of alternatives pursuant to materiel development decisions (a) Timeline Not later than 180 days after the date of the enactment of this Act, the Secretary of Defense shall update existing guidance for analyses of alternatives conducted pursuant to a materiel development decision for a major defense acquisition program to incorporate the following: (1) Study completion within nine months. (2) Study guidance issued by the Director, Cost Assessment and Program Evaluation of a scope designed to provide for reasonable completion of the study within the nine-month period. (3) Procedures for waiver of the timeline requirements of this subsection on a case-by-case basis if— (A) the subject of the analysis is of extreme technical complexity