by an institution of higher education. (I) An action to require any student to certify that such student is not a member of a single-sex social organization or to disclose the student’s membership in a single-sex social organization. (J) An action by an institution of higher education to interject its own criteria into the membership practices of the organization in any manner that conflicts with the rights of such organization under title IX of the Education Amendments of 1972 ( 20 U.S.C. 1681 et seq.) or this section. (K) An action to impose any operational policy or restriction that is in violation of this section. (2) Single-sex social organization The term single-sex social organization means— (A) a social fraternity or sorority that is an organization described in section 501(c) of the Internal Revenue Code of 1986 which is exempt from taxation under section 501(a) of such Code, the active membership of which consists primarily of students in attendance at an institution of higher education