; or (B) section 8677 of title 10, United States Code. (3) Certification; briefing (A) Presidential certification The President may exercise the authority provided by paragraph (1) not earlier than 60 days after the date on which the President certifies to the appropriate congressional committees that any submarine transferred under such authority shall be used to support the joint security interests and military operations of the United States and Australia. (B) Waiver of Chief of Naval Operations certification The requirement for the Chief of Naval Operations to make a certification under section 8678 of title 10, United States Code, shall not apply to a transfer under paragraph (1). (C) Briefing Not later than 90 days before the sale of any submarine under paragraph (1), the Secretary of the Navy shall provide to the appropriate congressional committees a briefing on— (i) the impacts of such sale to the readiness of the submarine fleet of the United States, including with respect to maintenance timelines, deployment-to-dwell ratios, training, exercise participation, and the ability to meet combatant commander requirements; (ii) the impacts of such sale to the submarine industrial base of the United States, including with respect to projected maintenance requirements, acquisition timelines for spare and replacement parts, and future procurement of Virginia class submarines for the submarine fleet of the United States; and (iii) other relevant topics as determined by the Secretary of the Navy. (4) Required mutual defense agreement Before any transfer occurs under subsection (a), the United States and Australia shall have a mutual defense agreement in place, which shall— (A) provide a clear legal framework for the sole purpose of Australia’s acquisition of conventionally armed, nuclear-powered submarines