This document contains final regulations regarding the arbitrage investment restrictions under section 148 of the Internal Revenue Code (Code) applicable to tax-exempt bonds and other tax- advantaged bonds issued by State and local governments. The final regulations clarify existing regulations regarding the definition of "investment-type property" by expressly providing an exception for investment in capital projects that are used in furtherance of the public purposes of the bonds. The final regulations affect State and local governmental issuers of these bonds and potential investors in capital projects financed with these bonds.