Last updated August 20, 2026 · Independent guide — not affiliated with USDA or SENASICA
Harry Reid International flies nonstop to Mexico City, Guadalajara, Cancún and Los Cabos. Vegas also serves a large snowbird population that drives to Baja via San Diego or to Sonora via Arizona — the 5-day clock runs from the day you enter Mexico, whichever way you go.
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 Las Vegas
We're verifying Las Vegas clinics now.
This requirement is weeks old and clinic participation is changing daily. Used a Las Vegas vet for your NWS certificate? Tell us and we'll list them for the next traveler.
Can't find an accredited vet in Las Vegas?
- 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 Nevada 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 Las Vegas veterinarian issuing NWS certificates? Get listed — free while the directory grows.