; (B) a loan procured in the course of purchasing a car if the loan is offered— (i) for the express purpose of financing the purchase; and (ii) is secured by the car; or (C) a loan made by a Federal credit union, as defined in section 101 of the Federal Credit Union Act ( 12 U.S.C. 1752 ), subject to the rate of interest limit provided under section 107(5)(A)(vi) of that Act, as implemented by the National Credit Union Administration Board. (b) No exemptions permitted The exemption authority of the Bureau under section 105(f) shall not apply with respect to this section. (c) Calculation of the annual percentage rate for open-End credit (1) In general For purposes of this section, the annual percentage rate applicable to an open-end credit plan shall be calculated under section 107(a)(2), subject to adjustments to the amount considered a finance charge, as provided in the rules issued by the Secretary of Defense on July 22, 2015, to carry out section 987 of title 10, United States Code. (2) Exception to finance charge calculation (A) In general Notwithstanding paragraph (1), for consumer credit extended in a credit card account under an open-end (not home-secured) consumer credit plan, a bona fide fee other than a periodic rate is not a charge required to be included in the finance charge for purposes of this section if the fee is assessed in compliance with section 127(n). (B) Limitation Subparagraph (A) shall not apply to— (i) any credit insurance premium or fee, including any charge for single premium credit insurance, any fee for a debt cancellation contract, or any fee for a debt suspension agreement