to this account as discretionary offsetting collections, to remain available until expended: Provided further , That the sum herein appropriated from the general fund shall be reduced as collections are received during the fiscal year, so as to result in a fiscal year 2019 appropriation estimated at not more than $113,969,000. Abandoned mine reclamation fund For necessary expenses to carry out title IV of the Surface Mining Control and Reclamation Act of 1977, Public Law 95–87 , $24,546,000, to be derived from receipts of the Abandoned Mine Reclamation Fund and to remain available until expended: Provided , That pursuant to Public Law 97–365 , the Department of the Interior is authorized to use up to 20 percent from the recovery of the delinquent debt owed to the United States Government to pay for contracts to collect these debts: Provided further , That funds made available under title IV of Public Law 95–87 may be used for any required non-Federal share of the cost of projects funded by the Federal Government for the purpose of environmental restoration related to treatment or abatement of acid mine drainage from abandoned mines: Provided further , That such projects must be consistent with the purposes and priorities of the Surface Mining Control and Reclamation Act: Provided further , That amounts provided under this heading may be used for the travel and per diem expenses of State and tribal personnel attending Office of Surface Mining Reclamation and Enforcement sponsored training. In addition, $90,000,000, to remain available until expended, for grants to States for reclamation of abandoned mine lands and other related activities in accordance with the terms and conditions in the report accompanying this Act: Provided , That such additional amount shall be used for economic and community development in conjunction with the priorities in section 403(a) of the Surface Mining Control and Reclamation Act of 1977 ( 30 U.S.C. 1233(a) ): Provided further , That such additional amount shall be distributed in