; (2) the adoption of such open textbooks; (3) the savings generated for students, States, territories, and the Federal Government through the use of open textbooks; and (4) the impact of open textbooks on instruction and student learning outcomes. (d) GAO report Not later than 3 years after the date of enactment of this subsection, the Comptroller General of the United States shall prepare and submit a report to the authorizing committees on the cost of textbooks to students at institutions of higher education. The report shall particularly examine— (1) the change of the cost of textbooks; (2) the factors that have contributed to the change of the cost of textbooks, including the impact of open textbooks on the cost; (3) the extent to which open textbooks are used at institutions of higher education compared to the use of open textbooks before the date of the enactment of this subsection; (4) how institutions are tracking the impact of open textbooks on instruction and student learning outcomes; (5) the availability of accessible forms of open textbooks and the barriers faced by students with disabilities in accessing accessible forms of open educational resources compared to the barriers faced in accessing traditional educational materials; and (6) the barriers faced by other student populations, including low-income students, in accessing high-quality open educational resources compared to the barriers faced in accessing traditional educational materials. . IX Amendments to Other Laws A Education of the Deaf Act of 1986 9001. Composition of Board of Trustees Section 103(a)(1) of the Education of the Deaf Act of 1986 ( 20 U.S.C. 4303(a)(1) ) is amended— (1) by striking twenty-one and inserting twenty-three ; (2) in subparagraph (A)— (A) by striking three and inserting four ; and (B) in clause (i)— (i) by striking one and inserting two ; and (ii) by striking Senator and inserting Senators