; and (2) an analysis that substantiates such certification. (e) Each additional amount appropriated by paragraphs (b)(1) through (b)(5) of this section shall be appropriated not more than once, in accordance with the certification requirements in subsection (d) of this section. (f) To the extent that any additional amount described by subsection (b) is not appropriated for Enforcement and Removal Operations under the conditions described in subsections (a) through (d) before September 30, 2020, such amount shall be appropriated as an additional amount for “Coast Guard—Procurement, Construction, and Improvements”, to become available on September 30, 2020, and to remain available until September 30, 2024, for shore facilities and aids to navigation: Provided , That the Commandant of the Coast Guard shall provide a detailed plan for the use of such funds not later than 30 days prior to the obligation of such funds. 229. (a) Any discretionary amounts appropriated in this Act in the current fiscal year and any fiscal year thereafter may be obligated for death gratuity payments, as authorized in subchapter II of chapter 75 of title 10, United States Code. (b) Subsection (a) shall only apply if an appropriation for Coast Guard—Operations and Support is unavailable for obligation for such payments. (c) Such obligations shall subsequently be recorded against appropriations that become available for Coast Guard—Operations and Support . 230. Notwithstanding section 111(d) of Public Law 107–71 , any Transportation Security Administration Determination on Transportation Security Officers and Collective Bargaining in effect on January 1, 2019, and any collective bargaining agreement entered into under such determination(s) shall remain in full force and effect, unless the Administrator issues a new or updated determination and the parties mutually and voluntarily enter into a new collective bargaining agreement. 231. (a) Not later than 30 days after the date of enactment of this Act, the Secretary of Homeland Security shall