This feature represents the entire area considered as the U.S.-Mexico border region for the U.S.-Mexico Border Program. The extent of the area was agreed upon between the United States and Mexico under the 1983 La Paz Agreement. The framework of this agreement stated that the border area is defined as "the area situated 62 miles (100 kilometers) on either side of the inland and maritime boundaries". This layer was generated by buffering the Homeland Infrastructure Foundation-Level Data (HIFLD) "Mexico and US Border" layer (https://hifld-geoplatform.opendata.arcgis.com/datasets/geoplatform::mexico-and-us-border/about) by [60] Miles.

These data support the U.S.-Mexico Border Program Map, which highlights the projects funded through the U.S.-Mexico Border Program (2013-2020) in both Region 9 and Region 6 of the U.S. EPA, including U.S. Federally recognized Tribal communities and states of Texas, New Mexico, Chihuahua, Nuevo Leon, Tamaulipas, Coahuila, California, Baja California, Sonora, and Arizona within 62 miles (100 kilometers) of the U.S.-Mexico Border. The projects stem from the Border 2020 framework that has five goals to reduce air pollution, improve access to clean water, promote materials and waste management, improve emergency preparedness, and enhance environmental stewardship, and fundamental strategies that includes children's health and environmental education and outreach.

For more information about Border 2020 and/or current U.S.-Mexico Border program visit this website: https://www.epa.gov/usmexicoborder