; and (5) in subsection (f)— (A) by redesignating paragraphs (3) and (4) as paragraphs (4) and (5); and (B) by inserting after paragraph (2) the following: (3) available open educational resources; . 5. Sense of congress It is the sense of Congress that institutions of higher education should encourage the consideration of open textbooks by faculty within the generally accepted principles of academic freedom that establishes the right and responsibility of faculty members, individually and collectively, to select course materials that are pedagogically most appropriate for their classes. 6. GAO report Not later than 3 years after the date of enactment of this Act, the Comptroller General of the United States shall prepare and submit a report to the Committee on Health, Education, Labor, and Pensions of the Senate and the Committee on Education and the Workforce of the House of Representatives on the cost of textbooks to students at institutions of higher education. The report shall particularly examine— (1) the implementation of section 133 of the Higher Education Act of 1965 ( 20 U.S.C. 1015b ), as amended by section 4, including— (A) the availability of college textbook and open educational resource information on course schedules; (B) the compliance of publishers with applicable requirements under such section; and (C) the costs and benefits to institutions of higher education and to students; (2) the change in the cost of textbooks; (3) the factors, including open textbooks, that have contributed to the change of the cost of textbooks; (4) the extent to which open textbooks are used at institutions of higher education; and (5) how institutions are tracking the impact of open textbooks on instruction and student learning outcomes.