1. Get your passport, credit or debit card ready, and read the help document. Among those exempted from this new requirement are U.S. citizens and travellers with a valid visa.Submit your customs and immigration declaration online using Advance Declaration up to 72 hours before you arrive in Canada. You will need your passport when completing the application. A consent letter demonstrates that a child has permission to travel outside Canada from every parent or guardian who is not accompanying them on the trip. To complete the form, you will need your passport, a credit or debit card, and an email address. You must also answer a few questions. In addition to your passport, you may need a travel authorization such as a visa or an Electronic Travel Authorization (eTA) to enter Canada. Global Medical Response or "GMR" is the leading integrated air and ground mobile patient care and EMS provider in the nation. The world meets the Crystal Super.