; and the presiding official has no authority to consider challenges to the computation of the rate or rates by the Educational Commission for Foreign Medical Graduates. (B) Notwithstanding section 600.52 of title 34, Code of Federal Regulations (as in effect pursuant to paragraph (1)), in this Act, the term foreign institution means an institution described in subsection (a). (C) Notwithstanding section 600.54(c) of title 34, Code of Federal Regulations (as in effect pursuant to paragraph (1)), to be eligible to participate in programs under title IV, foreign institution may not enter into a written arrangement under which an institution or organizations that is not eligible to participate in programs under title IV provides more than 25 percent of the program of study for one or more of the eligible foreign institution's programs. (D) Notwithstanding section 600.55(f)(1)(ii) of title 34, Code of Federal Regulations (as in effect pursuant to paragraph (1)), for a foreign graduate medical school outside of Canada, for Step 1, Step 2–CS, and Step 2–CK, or the successor examinations, of the United States Medical Licensing Examination administered by the Educational Commission for Foreign Medical Graduate, at least 75 percent of the school's students and graduates who receive or have received title IV funds in order to attend that school, and who completed the final of these three steps of the examination in the year preceding the year for which any of the school's students seeks a loan under title IV shall have received an aggregate passing score on the exam as a whole