for atomic energy defense, other defense activities, and classified activities, in carrying out the purposes of the Department of Energy Organization Act ( 42 U.S.C. 7101 et seq.), including the acquisition or condemnation of any real property or any facility or for plant or facility acquisition, construction, or expansion, $840,000,000, to remain available until expended: Provided , That of such amount, $288,396,000 shall be available until September 30, 2020, for program direction. Power marketing administrations Bonneville power administration fund Expenditures from the Bonneville Power Administration Fund, established pursuant to Public Law 93–454 , are approved for official reception and representation expenses in an amount not to exceed $5,000: Provided , That during fiscal year 2019, no new direct loan obligations may be made. Operation and maintenance, southeastern power administration For expenses necessary for operation and maintenance of power transmission facilities and for marketing electric power and energy, including transmission wheeling and ancillary services, pursuant to section 5 of the Flood Control Act of 1944 ( 16 U.S.C. 825s ), as applied to the southeastern power area, $6,500,000, including official reception and representation expenses in an amount not to exceed $1,500, to remain available until expended: Provided , That notwithstanding 31 U.S.C. 3302 and section 5 of the Flood Control Act of 1944, up to $6,500,000 collected by the Southeastern Power Administration from the sale of power and related services shall be credited to this account as discretionary offsetting collections, to remain available until expended for the sole purpose of funding the annual expenses of the Southeastern Power Administration: Provided further , That the sum herein appropriated for annual expenses shall be reduced as collections are received during the fiscal year so as to result in a final fiscal year 2019 appropriation estimated at not more than $0: Provided further , That notwithstanding 31 U.S.C. 3302