Each year, the President recommends a budget to carry out the activities of the federal government. An important component is the funding of grants to state and local air pollution control agencies under the Clean Air Act.

On December 4, 2015, President Obama signed into law the Fixing America's Surface Transportation (FAST) Act, a five-year (through FY 2020), $305-billion bill that replaces MAP-21, which was enacted in July 2012.