To provide U.S. Customs and Border Protection with access to Federal lands to carry out certain security activities in the Southwest border region, and for other purposes.

Grants U.S. Customs and Border Protection access to federal lands (excluding state-owned land within federal land boundaries) for security activities, including: (1) routine motorized patrols, and (2) the deployment of temporary tactical infrastructure.

Defines "federal lands" as all land, including a component of the National Wilderness Preservation System, under the control of any federal department or agency with legal jurisdiction over such land that is located within 150 miles of the Southwest border region.