; or (B) any other institution of higher education (as that term is defined in section 101 of such Act ( 20 U.S.C. 1001 )) at which not less than 50 percent of the total student enrollment consists of students from ethnic groups that are underrepresented in the fields of science and engineering. (4) The term STEM disciplines means disciplines relating to science, technology, engineering and mathematics, including disciplines that are critical to the national security functions of the Department of Defense and that are needed in the Department of Defense workforce (as determined by the Secretary of Defense under section 2192a(a)). . (2) Clerical amendment The table of sections at the beginning of such chapter is amended by inserting after the item relating to section 2192b the following new item: 2192c. Program to enhance contractor participation in science, technology, engineering, and mathematics activities. . (b) Conforming repeal Section 862 of the National Defense Authorization Act for Fiscal Year 2012 ( Public Law 112–81 ; 10 U.S.C. note prec. 2191) is repealed.