Part I: Transportation Infrastructure and Provisions Related to Public-Private Partnerships - Overview - The Infrastructure Investment and Jobs Act (IIJA), signed into law on November 15, 2021, authorizes historic investments in U.S. infrastructure, including approximately $550 billion of new federal investments (out of about $1.2 trillion in total spending) across a comprehensive range of infrastructure asset classes......By: Skadden, Arps, Slate, Meagher & Flom LLP.