Energy Independence and Security Act (EISA, 2007)

1) Link to the Text of the Act
Read the statute (Pub. L. 110–140)

2) Why It Was Done
EISA was passed to reduce U.S. dependence on oil, improve energy efficiency, and promote renewable fuels. It expanded the Renewable Fuel Standard (RFS), raised vehicle fuel economy (CAFE) standards, and promoted green building and appliance efficiency.

3) Pre-existing Law or Constitutional Rights
It built upon the Energy Policy Acts of 1992 and 2005, while pushing stronger mandates for renewables and efficiency.