the initiative that the Secretary considers appropriate. . (2) Effective date The amendment made by paragraph (1) shall take effect on the date of the enactment of this Act, and shall apply with respect to new initiatives initiated under section 1209 of the Carl Levin and Howard P. Buck McKeon National Defense Authorization Act for Fiscal Year 2015 on or after the date that is 30 days after the date of the enactment of this Act. (d) Limitation on aggregate cost of construction and repair projects Such section 1209 is further amended by adding at the end the following new subsection: (l) Limitation on aggregate cost of construction and repair projects The aggregate amount of construction and repair projects carried out under this section in any fiscal year may not exceed $10,000,000. . (e) Approval and notice before certain construction and repair projects Such section 1209 is further amended by adding at the end the following new subsection: (m) Approval and notice before certain construction and repair projects (1) Approval A construction or repair project costing more than $1,000,000 may not be carried out under this section unless approved in advance by the Commander of the United States Central Command. (2) Notice When a decision is made to carry out a construction or repair project to which paragraph (1) applies, the Commander of the United States Central Command shall notify in writing the appropriate committees of Congress of that decision, including the justification for the project and the estimated cost of the project. The project may be carried out only after the end of the 21-day period beginning on the date the notification is received by the committees or, if earlier, the end of the 14-day period beginning on the date on which a copy of the notification is provided in an electronic medium pursuant to section 480 of title 10, United States Code. . 1233. Extension and modification of authority to support operations and activities of the Office of Security Cooperation in Iraq (a) Extension of