On August 10, 2005, the President signed into law the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU), Pub. L. No. 109-59, 119 Stat. 1144. SAFETEA-LU makes it easier and more attractive for the private sector to participate in highway infrastructure projects, bringing new ideas and resources to the table. Innovative changes such as eligibility for private activity bonds, additional flexibility to use tolling to finance infrastructure improvements, and broader Transportation Infrastructure Finance and Innovation Act (TIFIA) program and State Infrastructure Bank (SIB) loan policies, will all stimulate needed private investment. SAFETEA-LU also gives States more flexibility to use road pricing to manage congestion, and promotes real-time traffic management in all States to help improve transportation security and provide better information to travelers and emergency responders. This Chapter provides an overview of some of the changes made by SAFETEA-LU that will encourage Public-Private Partnerships.