; and (iv) a confirmation as to whether the budget requests for impacted agencies were developed using the same estimates. (c) The Secretary shall share the bimonthly estimates developed pursuant to subsection (a) with the Secretary of Health and Human Services, the Attorney General, the Secretary of State, and the Committees on Appropriations of the House of Representatives and the Senate. (d) If the bimonthly estimates described in subsection (b) are not provided for the purposes described, the reprogramming and transfer authority provided in section 503 of this Act shall be suspended until such time as the required estimates are provided to the Committees on Appropriations of the House of Representatives and the Senate. 539. (a) Section 538 of the Department of Homeland Security Appropriations Act, 2022 (division F of Public Law 117–103 ) is amended by striking subsection (d) and inserting the following— (d) Amounts in the Fund may not be apportioned or allotted for any fiscal year until after the date on which the Act making full-year appropriations for the Department of Homeland Security for the applicable fiscal year is enacted into law, subject to subsection (e). (e) The Committees on Appropriations of the House of Representatives and the Senate shall be notified at least 15 days in advance of the planned use of funds. . (b) The amendments made by this section shall apply to amounts transferred under such section 538 on or after the date of enactment of this Act. 540. (a) Prior to the Secretary of Homeland Security requesting assistance from the Department of Defense for border security operations, the Secretary shall ensure that an alternatives analysis and cost-benefit analysis is conducted before such request is made, which shall include an examination of obtaining such support through other means. (b) Not later than 30 days after the date on which a request for assistance is made, the Secretary of Homeland Security shall submit to the Committees on Appropriations of the House of Representatives and the