Amend CSHB 1, Article IX, General Provisions, by adding a new section to read as follows: Section _____. Limitation on Expenditures for Purchases and Conversions of Alternative Fuel Vehicles. A state agency, including an institution of higher education, that is required to meet the percentage requirements for vehicles capable of using alternative fuels may expend funds appropriated by this Act for the purpose of meeting the percentage requirements only if the agency purchases or converts a vehicle that uses the most cost-effective, fuel efficient and mechanically efficient alternative fuel source.