of 1972 ( 20 U.S.C. 1681 et seq.), section 504 or 505 of the Rehabilitation Act of 1973 ( 29 U.S.C. 794 , 794a), or the Americans with Disabilities Act of 1990 ( 42 U.S.C. 12101 et seq.). The obligations imposed by this part are in addition to those imposed by title VI of the Civil Rights Act of 1964 ( 42 U.S.C. 2000d et seq.), title IX of the Education Amendments of 1972 ( 20 U.S.C. 1681 et seq.), section 504 of the Rehabilitation Act of 1973 ( 29 U.S.C. 794 ), and the Americans with Disabilities Act of 1990 ( 42 U.S.C. 12101 et seq.). (b) Free speech and expression Nothing in this part shall be construed to deny any student a right of free speech, assembly, or expression protected under the Constitution or any other Federal law, or to permit unlawful viewpoint discrimination. No policy established under this part may prevent or punish a student’s expression of religious, political, or philosophical beliefs in the classroom or at school activities when such expression takes place on equal terms with similar expressions of belief allowed by the school in the same setting. 4706. Rule of construction Nothing in this part shall be construed to prohibit a State or local entity from enacting any law with respect to the prevention of bullying or harassment of students that is not inconsistent with this part. . 7. Prohibition on retaliation and unequal treatment Title XI of the Civil Rights Act of 1964 ( 42 U.S.C. 2000h et seq.) is amended by adding at the end the following: 1107. Nonretaliation (a) In general (1) No government shall take any adverse action because of— (A) the existence or invocation of any exemption, defense, or remedy under this Act