This system allows the Government of Canada to adapt its criteria according to the risks involved by travelers, thus allowing easier and faster entry for low-risk travelers into Canada. Previously, visa-exempt foreign nationals wishing to enter Canada were not routinely questioned until they arrived at a Canadian port of entry.
The number of visa-exempt foreign nationals traveling to Canada on a temporary basis per year is significantly greater than the number of visa-exempt travelers. For example, visa-exempt foreign nationals, excluding U.S. citizens, represent approximately 74% of foreign nationals arriving by air in Canada.
In 2012-2013, the total number of visa-exempt foreign nationals who arrived in Canada and were deemed inadmissible at the port of entry was 7,055. This resulted in significant expense, delay and inconvenience for these foreign nationals, for other travelers, for airlines and the Canadian government. Reasons for refusal may include: membership in terrorist organizations, espionage, participation in war crimes or crimes against humanity, violation of international human rights, membership in organized crime groups , crime, or any other aspect endangering public health, such as tuberculosis.