; Order Suspending Introduction of Certain Persons From Countries Where a Communicable Disease Exists” issued on March 20, 2020, and published on March 26, 2020, in the Federal Register, remains in effect, including any extensions of such order: Provided further , That the amount in the previous proviso shall become available on a pro rata basis corresponding to the number of days remaining in the fiscal year at the time such order (or any extension of such order) is no longer in effect: Provided further , That any amount withheld from obligation as of September 20, 2021 resulting from the previous two provisos, shall be transferred as an additional amount to “Coast Guard—Procurement, Construction, and Improvements”, to become available on September 20, 2021, and to remain available until September 30, 2025, for shore facilities and aids to navigation: Provided further , 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. Procurement, construction, and improvements For necessary expenses of U.S. Immigration and Customs Enforcement for procurement, construction, and improvements, $97,799,000, of which $24,538,000 shall remain available until September 30, 2023, and of which $73,261,000 shall remain available until September 30, 2025. Transportation security administration Operations and support For necessary expenses of the Transportation Security Administration for operations and support, $7,927,407,000, to remain available until September 30, 2022: Provided , That not to exceed $7,650 shall be for official reception and representation expenses: Provided further , That security service fees authorized under section 44940 of title 49, United States Code, shall be credited to this appropriation as offsetting collections and shall be available only for aviation security: Provided further , That the sum appropriated under this heading from the general fund shall be reduced on a dollar-for-dollar basis as such