; and (11) details on actual utilization rates, including number of personnel assigned to the facility, number of personnel expected to work in-person at the facility and whether all personnel identified reflect filled and authorized positions. . 5. Review of special use space (a) Review The Comptroller General of the United States shall review the use of special use spaces in Federal buildings, including conference centers, fitness centers, and similar spaces to determine levels of utilization, opportunities for sharing, collocating, and other efficiencies. (b) Report Not later than 1 year after the date of enactment of this Act, the Comptroller General shall submit to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Environment and Public Works of the Senate a report containing the review under subsection (a). 6. Interagency space coordination (a) In general Chapter 33 of title 40, United States Code, is amended by adding at the end the following: 3319. Interagency space coordination Unless a Federal agency specifically restricts the sharing of the information described in this section for national security purposes, the Administrator of General Services shall share with tenant Federal agencies pursuing new or replacement office space information on any other Federal agencies located in the same geographical area for purposes of determining opportunities for consolidations, collocations, or other space sharing to reduce the costs of space and maximize space utilization. . (b) Clerical amendment The analysis for chapter 33 of title 40, United States Code, is amended by adding at the end the following: 3319. Interagency space coordination. . 7. Notification of milestones Section 3307 of title 40, United States Code, is amended by adding at the end the following: (i) Notification required For each project approved under this section, the Administrator shall notify, in writing, the Committee on Transportation and Infrastructure of the House of Representatives