; and rent of private or Government-owned space in the District of Columbia, $897,500,000, of which not to exceed $20,000,000 for litigation support contracts shall remain available until expended: Provided , That of the amount provided for INTERPOL Washington dues payments, not to exceed $685,000 shall remain available until expended: Provided further , That of the total amount appropriated, not to exceed $9,000 shall be available to INTERPOL Washington for official reception and representation expenses: Provided further , That of the amount appropriated, such sums as may be necessary shall be available to the Civil Rights Division for salaries and expenses associated with the election monitoring program under section 8 of the Voting Rights Act of 1965 ( 52 U.S.C. 10305 ) and to reimburse the Office of Personnel Management for such salaries and expenses: Provided further , That of the amounts provided under this heading for the election monitoring program, $3,390,000 shall remain available until expended. In addition, for reimbursement of expenses of the Department of Justice associated with processing cases under the National Childhood Vaccine Injury Act of 1986, not to exceed $10,000,000, to be appropriated from the Vaccine Injury Compensation Trust Fund. Salaries and expenses, antitrust division For expenses necessary for the enforcement of antitrust and kindred laws, $164,977,000, to remain available until expended: Provided , That notwithstanding any other provision of law, fees collected for premerger notification filings under the Hart-Scott-Rodino Antitrust Improvements Act of 1976 ( 15 U.S.C. 18a ), regardless of the year of collection (and estimated to be $136,000,000 in fiscal year 2019), shall be retained and used for necessary expenses in this appropriation, and shall remain available until expended: Provided further , That the sum herein appropriated from the general fund shall be reduced as such offsetting collections are received during fiscal year 2019, so as to result in a final fiscal year