The Department of Homeland Security (DHS), U.S. Customs and Border Protection (CBP) announces the availability of this Final EA. Pursuant to the National Environmental Policy Act (NEPA) of 1969, 42 U.S.C. 4321 et seq., CBP has prepared the Final EA to identify and assess the potential impacts associated with the proposed mechanical control of Carrizo cane (Aundo donax) in the Rio Grande basin in Texas (i.e., The Proposed Action). CBP would mechanically top (i.e., trim) the Carrizo cane to a height of approximately 3 feet (1 meter) using a mechanical cutter bar mounted on a four-wheel drive tractor. The purpose of the Proposed Action is to decrease cane height to ensure sufficient visibility of critical areas in the Rio Grande basin and provide access to these areas by USBP agents, when necessary.