; and (4) $940,000,000 shall be available for repairs and alterations: Provided , That not to exceed $110,000,000 of the amounts provided under this heading shall be available without regard to fiscal year limitations and may be expended for rental of space, related to leasing of temporary space in connection with projects funded under this heading: Provided further , That not to exceed $130,000,000 of the amounts provided under this heading shall be available without regard to fiscal year limitations and may be expended in the building operations account, for the costs of completing and supporting the projects funded under this heading: Provided further , That not less than $10,000,000 of the funds provided shall be for on-the-job pre-apprenticeship and apprenticeship training programs registered with the Department of Labor, for the construction, repair, and alteration of Federal buildings: Provided further , That not less than $3,000,000,000 of the funds provided under this heading shall be obligated by September 30, 2022, and the remainder of the funds provided under this heading shall be available until September 30, 2024: Provided further , That the Administrator of General Services is authorized to initiate design, construction, repair, alteration, and other projects through existing authorities of the Administrator: Provided further , That none of the funds in this paragraph may be used to initiate design, construction, repair, alteration, and other projects in the National Capital Region: Provided further , That the General Services Administration shall submit a detailed plan, by project, regarding the use of funds made available in this Act to the Committees on Appropriations of the House of Representatives and the Senate within 45 days of enactment of this Act, and update on a quarterly basis thereafter if there any changes: Provided further , That, hereafter, the Administrator shall report to the Committees on the obligation of these funds on a quarterly basis beginning with the end of the first