; and the expected developmental milestones to be achieved and costs to be incurred in the next quarter: Provided further , That the Internal Revenue Service shall include, in its budget justification for fiscal year 2021, a summary of cost and schedule performance information for its major information technology systems: Provided further , That of the funds provided under this paragraph, $3,724,000,000 is provided to meet the terms of section 251(b)(2) of the Balanced Budget and Emergency Deficit Control Act of 1985, as amended, and section 1(f)(2) of H. Res. 293 of the 116th Congress as engrossed in the House of Representatives on April 9, 2019. In addition, not less than $200,000,000 for enforcement tax activities under this heading, including tax compliance to address the Federal tax gap: Provided further , That such amount is additional new budget authority for tax enforcement activities, including tax compliance to address the Federal tax gap, as specified for purposes of section 251(b)(2) of the Balanced Budget and Emergency Deficit Control Act of 1985, as amended, and section 1(f)(1) of H. Res. 293 of the 116th Congress. business systems modernization For necessary expenses of the Internal Revenue Service's business systems modernization program, $290,000,000, to remain available until September 30, 2022, for the capital asset acquisition of information technology systems, including management, labor, and related contractual costs of said acquisitions, including related Internal Revenue Service labor costs, and contractual costs associated with operations authorized by 5 U.S.C. 3109: Provided , That not later than 30 days after the end of each quarter, the Internal Revenue Service shall submit a report to the Committees on Appropriations of the House of Representatives and the Senate and the Comptroller General of the United States detailing the cost and schedule performance for major information technology investments included in the Internal Revenue Service Integrated Modernization Business Plan.