Corporation, as determined pursuant to section 821(d) of the Robert T. Stafford Disaster Relief and Emergency Assistance Act ( 42 U.S.C. 5121 et seq.). (c) Effect of noncompliance No funds withheld under this section from apportionment to a State shall be available for apportionment to the State. . (b) Clerical amendment The analysis for chapter 1 of title 23, United States Code, is amended by adding at the end the following: 171. National standard for State participation in disaster insurance program. . 302. Emergency relief program for repair of highways (a) Condition on receipt of assistance Section 125 of title 23, United States Code, is amended by adding at the end the following: (h) Reimbursement agreements Assistance may only be provided to a State under this section if the State agrees to reimburse the United States for all expenses incurred in providing such assistance. There are hereby appropriated to the Highway Trust Fund amounts equivalent to reimbursements received pursuant to this subsection. . (b) Effective date The amendment under subsection (a) shall be made on October 1, 2019, and shall apply on and after such date, except to the extent provided in subsection (c). (c) Inapplicability to disasters and emergencies declared before effective date Section 125 of title 23, United States Code, as in effect on the day before the date referred to in subsection (b), shall continue to apply with respect to any disaster or emergency that commences or occurs (or is declared or determined to have commenced or occurred) before the date referred in subsection (b).