Canada → Mexico

Go to the SENASICA office (OISA) at the point of entry with the pet in a clean carrier. Staff check that it shows no signs of infectious disease, is free of external parasites and has no fresh or healing wounds. External parasites → treatment by a vet of your choice; ticks → sample to the lab, pet held at the OISA until the result. Costs are the importer's.

A dirty carrier, or one with disposable bedding, toys or food, is disinfected and everything inside is removed and destroyed.

The day's ration of balanced pet food per the sheet; more only in intact, labelled packs from a listed country (SENASICA's food page and tourist-import list, Canada included — see the rule notes).

Zoosanitary import certificate (Certificado Zoosanitario para Importación, CZI), issued by SENASICA at the OISA on arrival once the sheet's requirements are met — no advance application. Ask the OISA staff for request form FF-SENASICA-003 (pet dog / pet cat versions; fields for the microchip number, origin and provenance, address in Mexico). Customs (ANAM) must be shown the certificate. No fee for pets (see fees).

Up to three pets per passenger enter duty-free as part of the passenger's baggage, travelling with them (RGCE 2026 rule 3.2.3, in force for 2026). The sources consulted do not say what happens with a fourth pet (not researched).