In addition to your passport, you may need a travel authorization such as a visa or an Electronic Travel Authorization (eTA) to enter Canada. Know which documents you need and where to get them to make your travel quick and easy.You can now apply for a permanent resident travel document (PRTD) online through the Permanent Residence Portal. Passport ; Citizenship and immigration documents. International visitors to Canada must carry valid identification documents and, if required, a visa in order to be allowed entry. All governmentissued identification documents (Canadian or foreign) must be valid. They cannot be expired. Click here​ for complete information on renewing your Maryland license. Visit an application center to: Provide required documentation and fingerprints. Bring your current U.S. passport or a driver's license and birth certificate.