31 CFR § 50.90 - Mandatory and discretionary recoupment.
(a) Pursuant to section 103(e) of the Act, the Secretary shall impose, and insurers shall collect, such Federal terrorism policy surcharges as needed to recover 140 percent of the mandatory recoupment amount for any calendar year.
(b) In the Secretary's discretion, the Secretary may recover any portion of the aggregate Federal share of compensation that exceeds the mandatory recoupment amount through a Federal terrorism policy surcharge based on the factors set forth in section 103(e)(7)(D) of the Act.
(c) If the Secretary imposes a federal terrorism policy surcharge as provided in paragraph (a) of this section, then the required amounts, based upon the extent to which payments for the Federal Share of Compensation have been made by the collection deadlines in section 103(e)(7)(E) of the Act, shall be collected in accordance with such deadlines:
(1) For any act of terrorism that occurs on or before December 31, 2022, the Secretary shall collect all required amounts by September 30, 2024;
(2) For any act of terrorism that occurs between January 1, 2023 and December 31, 2023, the Secretary shall collect 35% of any required amounts by September 30, 2024, and the remainder by September 30, 2029; and
(3) For any act of terrorism that occurs on or after January 1, 2024, the Secretary shall collect all required amounts by September 30, 2029.