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Pet Birds NWS Addendum: Mexico's Screwworm Rule for Birds

The pet birds NWS addendum for Mexico works like the dog certificate โ€” USDA-accredited vet, 5-day window โ€” with one big difference: the bird health certificate still needs APHIS endorsement.

Last updated August 20, 2026 ยท Independent guide โ€” not affiliated with USDA or SENASICA

Dogs got the headlines, but the August 3, 2026 rule also covers pet birds. Birds entering Mexico from the US need an NWS Inspection Addendum for Pet Birds โ€” issued by a USDA-accredited veterinarian within 5 days of arrival โ€” attached to their standard export health certificate.

How birds differ from dogs

DogsPet birds
NWS documentNWS Inspection CertificateNWS Inspection Addendum
Issued byUSDA-accredited vetUSDA-accredited vet
WindowWithin 5 days of arrivalWithin 5 days of arrival
APHIS endorsementNot requiredRequired for the health certificate (digital signature accepted)

Bird paperwork is stricter on formatting: certificates must be typewritten, single-sided, with dates, states and ages spelled out โ€” no abbreviations, corrections or erasures. Build in extra days for the APHIS endorsement step.

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