; (B) the provision or rule is unnecessary or unwarranted in order to promote the safety and soundness of the savings and loan holding company or the mutual holding company; and (C) the exemption is necessary, appropriate, or consistent with the public interest. (5) Limitation The authority granted to the Board under paragraph (2) shall not apply with respect to a savings and loan holding company described in subsection (c)(9)(C). (6) Indexation of asset threshold The asset threshold identified in paragraph (2) shall be increased annually at a percentage equal to the percentage change in the total aggregate assets of insured depository institutions for each 12-month period ending in December of each year, rounded to the nearest $10,000,000. .