; (B) the Secretary notifies the congressional defense committees of the proposed exercise of such waiver; and (C) a 10-day period has elapsed since such notification. (3) Continued congressional notification If the Secretary of Defense exercises the waiver authority under paragraph (2), every 30 days during the period beginning on the date of the initial notification under paragraph (2)(B) and ending on the date on which the implementation of the plan under subsection (a) commences, the Secretary shall notify the congressional defense committees of the exercise of such authority. (d) Congressional briefing Not later than July 1, 2024, the Secretary of Defense shall provide to the congressional defense committees a briefing on progress of the air defense equipping and training effort against the air and missile threat to Iraq, including in the Iraqi Kurdistan Region. (e) Congressional defense committees defined In this section, the term congressional defense committees has the meaning given that term in section 101 of title 10, United States Code.