Santa Teresa port reopens despite screwworm case in New Mexico
USDA moves to resume cross-border livestock and produce traffic after months-long closure tied to parasite outbreak.

When does the Santa Teresa port reopen for livestock and produce traffic?
The Santa Teresa port of entry in New Mexico is reopening to cross-border livestock and produce traffic despite a new screwworm case detected in the state. The decision reverses a months-long closure imposed to prevent the spread of the livestock parasite, which had halted trade flows through the southern New Mexico crossing.
The screwworm is a flesh-eating parasite that infests livestock wounds and can kill cattle, sheep, and other animals if untreated. The pest was eradicated from the United States in 1966 but periodically reappears near the Mexican border. The recent New Mexico case marks the first detection in the state since the closure was implemented earlier this year.
What the reopening means for cross-border freight
The Santa Teresa port handles significant volumes of livestock and agricultural products moving between the U.S. and Mexico. The closure forced carriers to reroute shipments through other crossings, adding miles and transit time to loads that would normally move through southern New Mexico.
Reopening the port restores a direct route for livestock haulers and produce carriers serving the region. Trucks moving cattle, fresh produce, and temperature-controlled agricultural freight will regain access to the crossing, cutting deadhead miles for fleets that had been forced to detour during the closure.
Inspection protocols and equipment requirements
Carriers hauling livestock or agricultural products through Santa Teresa will face heightened inspection protocols tied to screwworm prevention. USDA veterinary inspectors will examine animals for signs of infestation before allowing them to cross. Livestock trailers may be subject to additional cleaning and disinfection requirements to prevent parasite transmission.
Fleets should expect longer dwell times at the port during the initial reopening period as inspection procedures are implemented. Carriers moving temperature-controlled produce loads will need to account for potential delays in their cold-chain planning, particularly if refrigerated trailers are held for extended inspections.
Risk to equipment and operations
The screwworm itself poses no direct threat to truck equipment, but the inspection and quarantine measures tied to its control create operational friction. Livestock haulers face the risk of rejected loads if animals show signs of infestation at the border, forcing carriers to return shipments to origin or divert to treatment facilities.
Produce carriers moving through Santa Teresa should monitor USDA guidance on approved commodities and inspection requirements. Some agricultural products may face additional scrutiny or temporary restrictions if screwworm activity escalates in the region.
What this means for southern New Mexico freight lanes
The port reopening restores capacity on a key north-south freight corridor that had been operating at reduced volume during the closure. Carriers serving the El Paso-Las Cruces market and fleets moving livestock from Chihuahua to U.S. feedlots will see improved routing options and reduced empty miles.
Fleets should verify current USDA protocols before dispatching livestock or agricultural loads through Santa Teresa. Inspection requirements may change if additional screwworm cases are detected in New Mexico or neighboring states.



