; and (ii) is in the public interest. (C) Extension Subject to a determination under subparagraph (B), the Board may extend the 5-year period described in subparagraph (A), as to any particular bank holding company, for not more than an additional 6 months at a time, if— (i) the Board certifies that such extension would promote the public interest and would not pose a significant risk to the stability of the banking system or financial markets of the United States; and (ii) such extension, in the aggregate, does not exceed 1 year for any single bank holding company. (D) Requirements for entities receiving an extension Upon receipt of an extension under subparagraph (C), a bank holding company shall notify the shareholders of the bank holding company and the general public that the bank holding company has failed to comply with the requirements of subparagraph (A). (b) Financial subsidiaries of national banks disallowed (1) In general Section 5136A of the Revised Statutes ( 12 U.S.C. 24a ) is repealed. (2) Transition (A) Orderly termination of existing affiliation In the case of a national bank which, pursuant to the amendment made by paragraph (1), is no longer authorized to control or be affiliated with a financial subsidiary as of the date of enactment of this Act, such affiliation, ownership or control, or activity shall be terminated as soon as is practicable, and in no event later than the end of the 5-year period beginning on the date of enactment of this Act. (B) Early termination The Comptroller of the Currency (in this section referred to as the Comptroller ), after opportunity for hearing, at any time, may terminate an affiliation prohibited by subparagraph (A) before the end of the 5-year period described in subparagraph (A) if the Comptroller determines, having due regard for the purposes of this Act, that such action— (i) is necessary to prevent undue concentration of resources, decreased or unfair competition, conflicts of interest, or unsound banking practices