Last updated August 20, 2026 · Independent guide — not affiliated with USDA or SENASICA
Laredo is the single busiest land port on the US–Mexico border. Dog owners crossing at the Juárez–Lincoln or World Trade bridges into Nuevo Laredo need the NWS certificate in hand — Mexican OISA/SENASICA officials inspect pets at the port of entry.
The requirement: since August 3, 2026, dogs entering Mexico from the US must carry an NWS Inspection Certificate signed by a USDA-accredited veterinarian within 5 days of arrival in Mexico. No APHIS endorsement is needed — the signed form is presented at the Mexican border or airport. Full guide here.
Vets offering screwworm certificates in Laredo
We're verifying Laredo clinics now.
This requirement is weeks old and clinic participation is changing daily. Used a Laredo vet for your NWS certificate? Tell us and we'll list them for the next traveler.
Can't find an accredited vet in Laredo?
- Call clinics that advertise international health certificates — they're the most likely to have a USDA-accredited vet on staff.
- Ask the exact question: “Can a USDA-accredited veterinarian at your clinic complete the NWS Inspection Certificate for Pet Dogs going to Mexico?”
- Contact the Texas USDA APHIS Veterinary Services office for a referral, per the official APHIS guidance.
- Download the form ahead of your appointment from the APHIS Mexico pet travel page — many clinics haven't seen it yet.
How to find a USDA-accredited vet →
Are you a Laredo veterinarian issuing NWS certificates? Get listed — free while the directory grows.