et seq.) is amended by adding at the end the following new section: 435. Border security technology program management (a) Major acquisition program defined In this section, the term major acquisition program means an acquisition program of the Department that is estimated by the Secretary to require an eventual total expenditure of at least $300,000,000 (based on fiscal year 2018 constant dollars) over its life cycle cost. (b) Planning documentation For each border security technology acquisition program of the Department that is determined to be a major acquisition program, the Secretary shall— (1) ensure that each such program has a written acquisition program baseline approved by the relevant acquisition decision authority