We recommend the Architect of the Capitol (AOC) perform the following: a. Recover the questioned costs of $6,464 identified within the R-Tunnel Project to the extent legally and administratively possible. b. Review the questioned costs of $68,940 ($75,404 - $6,464) identified within the CHOBr ($53,663) and R-Tunnel ($15,277) projects to determine if the costs are allowable in accordance with contract requirements; and as applicable, recover any additional amounts resulting from the application of items like overhead and profits to the unallowable costs. c. Ensure future change orders adhere to the contractual language regarding overhead costs not being allowed as direct costs; and when the AOC determines that overhead costs are allowable as direct costs, document how and why that determination was made.