; 130 Stat. 2311) is amended— (1) by striking Not later than and inserting (a) In general .—Not later than ; and (2) by adding at the end the following new subsection: (b) Identification of industry subcategories In preparing the guidance required under subsection (a), the Secretary shall identify those industry subcategories in facilities-related services, knowledge-based services (except engineering services), construction services, medical services, or transportation services in which there are significant numbers of commercial services providers able to meet the requirements of the Department of Defense. . 821. Government Accountability Office bid protest reforms (a) In general Chapter 137 of title 10, United States Code, as amended by section 812, is further amended by adding at the end the following new section: 2340. Government Accountability Office bid protests (a) Payment of costs for denied protests (1) In general A contractor who files a protest described under paragraph (2) with the Government Accountability Office on a contract with the Department of Defense shall pay to the Department of Defense costs incurred for processing a protest at the Government Accountability Office and the Department of Defense. (2) Covered protests A protest described under this paragraph is a protest— (A) all of the elements of which are denied in an opinion issued by the Government Accountability Office