; or (ii) that are distributed to States and counties under section 7 of the Act of August 18, 1941 ( 33 U.S.C. 701c–3 ); (3) an assessment of the potential impact of using a fixed revenue fee on the sales, revenues, and amounts described in paragraph (2); (4) an analysis of Corps of Engineers policies related to the length of commercial concessionaire contracts; (5) an assessment of the impacts of changing the length of commercial concessionaire contracts to a minimum of 25 years, including assessment of— (A) the potential effects on monetary investment in Corps of Engineers properties by commercial concessionaires, including whether establishing such a minimum contract length would lead to increased investment; and (B) whether establishing such a minimum contract length would reduce competition, or result in commercial concessionaires providing less value to the public or to water resources development projects; and (6) an assessment of whether changes in the concessionaire fee structure or the minimum length of a commercial concessionaire contract is in the public interest. 221. Study on water supply and water conservation at water resources development projects (a) In general Not later than 18 months after the date of enactment of this Act, the Secretary shall submit to the Committee on Transportation and Infrastructure of the House of the Representatives and the Committee on Environment and Public Works of the Senate a report that analyzes the benefits and consequences of including municipal water supply and water conservation as a primary mission of the Corps of Engineers in carrying out water resources development projects. (b) Inclusion The Secretary shall include in the report submitted under subsection (a)— (1) a description of existing water resources development projects with municipal water supply or water conservation as authorized purposes, and the extent to which such projects are utilized for such purposes