on Appropriations of the House of Representatives and the Senate prior to making unobligated balances available under the authority in the previous proviso: Provided further , That reimbursement to the trust funds under this heading for expenditures for official time for employees of the Social Security Administration pursuant to 5 U.S.C. 7131 , and for facilities or support services for labor organizations pursuant to policies, regulations, or procedures referred to in section 7135(b) of such title shall be made by the Secretary of the Treasury, with interest, from amounts in the general fund not otherwise appropriated, as soon as possible after such expenditures are made. Of the total amount made available in the first paragraph under this heading, not more than $1,582,000,000, to remain available through March 31, 2021, is for the costs associated with continuing disability reviews under titles II and XVI of the Social Security Act, including work-related continuing disability reviews to determine whether earnings derived from services demonstrate an individual's ability to engage in substantial gainful activity, for the cost associated with conducting redeterminations of eligibility under title XVI of the Social Security Act, for the cost of co-operative disability investigation units, and for the cost associated with the prosecution of fraud in the programs and operations of the Social Security Administration by Special Assistant United States Attorneys: Provided , That, of such amount, $273,000,000 is provided to meet the terms of section 251(b)(2)(B)(ii)(III) of the Balanced Budget and Emergency Deficit Control Act of 1985, as amended, and $1,309,000,000 is additional new budget authority specified for purposes of section 251(b)(2)(B) of such Act: Provided further , That, of the additional new budget authority described in the preceding proviso, up to $10,000,000 may be transferred to the Office of Inspector General , Social Security Administration, for the cost of jointly operated co-operative disability