; (B) recapture of funds from the grantee or repayment of funds by the grantee; or (C) the expiration of the 10-year period beginning upon the Secretary obligating such amounts to the grantee, as such period may be extended pursuant to paragraph (2), the Secretary shall transfer such unexpended amounts to the Secretary of the Treasury for deposit into the Community Development Block Grant Disaster Recovery Reserve Fund established under section 124, except that the Secretary may, by regulation, permit the grantee to retain amounts needed to close out the grant. (2) Extension of period for use of funds The period under paragraph (1)(C) shall be extended by not more than 3 years if the Secretary waives this requirement and submits a written justification for the waiver to the Committees on Appropriations of the House of Representatives and the Senate that specifies the period of that extension. (m) Thresholds and reporting for disaster relief (1) Definition of covered grantee In this subsection, the term covered grantee means a grantee under this title that receives funds from an appropriations Act to carry out the purposes of this section to address the damage in an area for which the President has declared a major disaster under section 401 of the Robert T. Stafford Disaster Relief and Emergency Assistance Act ( 42 U.S.C. 5170 ). (2) Setting thresholds The Secretary shall establish and make publicly available spending thresholds that a covered grantee shall be required— (A) to meet on the date that is 6 months after the date on which funds have been obligated by the covered grantee