The Final Environmental Impact Statement (FEIS) builds upon the Alternatives Analysis/Draft Environmental Impact Statement (AA/DEIS) completed in October 2008. The FEIS assesses the potential transportation and environmental impacts and benefits of the Purple Line Preferred Alternative and the No Build Alternative. The FEIS was prepared by FTA, in cooperation with MTA, in accordance with the National Environmental Policy Act of 1969 (NEPA). It includes a Draft Section 4(f) Evaluation, prepared in accordance with Section 4(f) of the U.S. Department of Transportation Act of 1966, as well as other applicable laws. The FEIS addresses comments on the AA/DEIS, guides decision-making, and meets the federal and state regulatory obligations of FTA and Maryland Department of Transportation Maryland Transit Administration (MDOT MTA).