1. Get your passport, credit or debit card ready, and read the help document. This article covers the Electronic Travel Authorization (ETA) process for Canada, including instructions on how to apply for the travel document.Refer to Canadian passports and travel documents. You can pay online for all your passport services before completing your passport application. Find information and begin your application. Apply for Canada's Electronic Travel Authorization (eTA) online. Valid for up to five years, it allows multiple short stays. To apply for electronic travel authorization, travelers must complete an online application through VisaHQ. With the Canada Electronic Travel Authorization (eTA) you can visit Canada as often as you wish for short vacation stays lasting up to six months at a time. Gather your documents and double-check that your passport and credit card are valid.