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 2018, 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, $6,379,000, 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 $6,379,000 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 2018 appropriation estimated at not more than $0: Provided further , That notwithstanding 31 U.S.C. 3302 , up to $51,000,000 collected by the Southeastern Power Administration pursuant to the Flood Control Act of 1944 to recover purchase power and wheeling expenses shall be credited to this account as offsetting collections, to remain available until expended for the sole purpose of making purchase power and wheeling expenditures: Provided further , That for purposes of this appropriation, annual expenses means expenditures that are generally recovered in the same year that they are incurred (excluding purchase power and wheeling expenses). Operation