https://travel.state.gov/content/passports/en/alertswarnings/mexico-travel-warning.htmlTamaulipas (includes Matamoros, Nuevo Laredo, Reynosa, and Tampico): U.S. citizens should defer all non-essential travel to the state of Tamaulipas due to violent crime, including homicide, armed robbery, carjacking, kidnapping, extortion, and sexual assault. The number of reported kidnappings in Tamaulipas is among the highest in Mexico. State and municipal law enforcement capacity is limited to nonexistent in many parts of Tamaulipas. Violent criminal activity occurs more frequently along the northern border and organized criminal groups may target public and private passenger buses traveling through Tamaulipas. These groups sometimes take all passengers hostage and demand ransom payments. U.S. government personnel are subject to movement restrictions and a curfew between midnight and 6 a.m. Matamoros, Reynosa, Nuevo Laredo, and Ciudad Victoria have experienced numerous gun battles and attacks with explosive devices in the past year.
Coahuila: Violence and criminal activity, including homicide, armed robbery, carjacking, kidnapping, extortion, and sexual assault, pose significant and continuing security concerns, particularly along the highways between Piedras Negras and Nuevo Laredo. U.S. citizens should defer non-essential travel to all parts of Coahuila, with the exception of travel to Saltillo, Bosques de Monterreal, and Parras de la Fuente. U.S. government personnel are only allowed to travel during daylight hours to Saltillo and Bosques de Monterreal, and must abide by an Embassy-imposed curfew of 1 a.m. to 6 a.m. U.S. government personnel may also travel to Parras de la Fuente and on toll Highway 40 to Highway 57 and only during daylight hours. State and municipal law enforcement capacity is limited in some parts of Coahuila, particularly in the north of the state.
Nuevo Leon (includes Monterrey): U.S. government personnel may travel outside the city of Monterrey only during daylight hours on toll roads, and must return to the city of San Pedro Garza Garcia municipal boundaries to abide by the Embassy-imposed curfew of 1 a.m. and 6 a.m., except for travel to the airport after 5 a.m.
Chihuahua (includes Ciudad Juarez, the city of Chihuahua, Ojinaga, Palomas, Nuevo Casas Grandes and Copper Canyon): Criminal activity and violence remains an issue throughout the state of Chihuahua and its major cities. Travel between cities only on major highways and only during daylight hours.
Ciudad Juarez: Exercise caution in all areas. U.S. government personnel are prohibited from traveling after dark west of Eje. Juan Gabriel and south of Boulevard Zaragoza. Defer non-essential travel to the areas southeast of Boulevard Independencia and the Valle de Juarez region.
Within the city of Chihuahua: Defer non-essential travel to the Morelos, Villa, and Zapata districts, where the travel of U.S. government personnel is restricted.
Ojinaga: When possible, travel via U.S. Highway 67 through the Presidio, Texas port-of-entry.
Palomas and the Nuevo Casas Grandes/Paquime region: When possible, travel via U.S. Highway 11 through the Columbus, New Mexico port-of- entry.
Nuevo Casas Grandes: U.S. government personnel are prohibited from traveling outside of city limits after dark.
Copper Canyon and other areas of the state of Chihuahua: U.S. citizens should defer non-essential travel.