; or (3) in professional military education. (b) Protection of academic freedom Nothing in this section shall be construed to supersede the institutional autonomy or academic freedom of instructors involved in the selection of textbooks, supplemental materials, or other classroom materials, or in the preparation or presentation of classroom instruction or lectures. (c) Definitions In this section, the term critical race theory means the theory that individuals, by virtue of race, ethnicity, color, or national origin, bear collective guilt and are inherently responsible for actions committed in the past by other individuals of such race, ethnicity, color, or national origin. 577. Increased fitness standards for Army close combat force military occupational specialties (a) Implementation Not later than 18 months after the date of the enactment of this Act, the Secretary of the Army shall implement increased minimum fitness standards as part of the Army Combat Fitness Test for all soldiers of the following military occupational specialties or areas of concentration: (1) 11A. (2) 11B. (3) 11C. (4) 11Z. (5) 12A. (6) 12B. (7) 13A. (8) 13F. (9) 18A. (10) 18B. (11) 18C. (12) 18D. (13) 18E. (14) 18F. (15) 18Z. (16) 19A. (17) 19C. (18) 19D. (19) 19K. (20) 19Z. (b) Briefing Not later than 365 days after the date of the enactment of this Act, the Secretary of the Army provide a briefing to the Committees on Armed Services of the Senate and House of Representatives describing the methodology used to establish standards under subsection (a). 578. Publication of training materials of the Defense Equal Opportunity Management Institute Not later than September 30, 2024, the Secretary of Defense shall publish all materials created by the Defense Equal Opportunity Management Institute for the purpose of training members of the Armed Forces on the website of such Institute. 579. Prohibition on Federal funds for the Department of Defense Countering Extremism Work Group No funds authorized to be appropriated by this Act may be used to