Apply online for an eTA. 1. Get your passport, credit or debit card ready, and read the help document.Carry a valid Canadian passport. A passport is the only reliable and universally accepted travel document. A visitor visa is a document or stamp on the passport (in most cases) which allows entry of a person in Canada as that person meets the requirements of the Act. Read these instructions carefully to properly complete this form. If you need more space to complete an answer, use a separate sheet of paper. In addition to your passport, you may need a travel authorization such as a visa or an Electronic Travel Authorization (eTA) to enter Canada. We provide services to Canadians visiting and living in the United States. We also provide services to Canadians in: Arizona, Nevada, Southern California.