; (2) for operational test and evaluation; (3) for the purchase of cost data from contractors; and (4) for the purchase or license of technical data. (c) Definitions In this section, the terms budget and defense budget materials have the meaning given those terms in section 234 of this title. . (b) Clerical amendment The table of sections at the beginning of such chapter is amended by inserting after the item relating to section 2433a following new item: 2434. Major defense acquisition programs: display of budget information. . 403. Enhancements to transparency in test and evaluation processes and data (a) Additional requirements relating to designation of a major defense acquisition program Section 139 of title 10, United States Code, is amended— (1) in subsection (a)(2)(B), by inserting before the period at the end the following: and in accordance with subsection (l). ; (2) by adding at the end the following new subsection: (l) For purposes of subsection (a)(2)(B), before designating a program that is not a major defense acquisition program for the purposes of section 2430 of this title as a major defense acquisition program for the purposes of this section, the Director shall provide in writing to the Under Secretary of Defense for Acquisition and Sustainment, and the test and evaluation executive of the military department or departments executing the program, the specific circumstances of the program that led to the designation decision.