; (2) architectural and engineering services (as defined in section 1102 of title 40, United States Code); (3) interior design; (4) performance of substantial construction work for facility, infrastructure, and environmental restoration projects; and (5) construction or substantial alteration of public buildings or public works. (e) Rule of construction Nothing in this Act shall be construed to restrict the use of reverse auctions for the procurement of other goods and services except as specifically provided for under this Act. (f) Report Not later than two years after the date of the enactment of this Act, the Administrator of the General Services Administration shall submit to the Committee on Homeland Security and Governmental Affairs of the Senate and the Committee on Oversight and Reform of the House of Representatives a report on the effectiveness of this Act in delivering complex, specialized, or substantial design and construction services to the United States Government.