In 1985, the first version of machine-readable passports (MRP) was issued, in accordance with International Civil Aviation Organization standards.
An amended version came into circulation in 1991, with additional security features and more stringent processing requirements.
They took the form of a "Letter of Request" from the Governor General of Canada.
The lax security has led to numerous cases of misuse of the passport, so the Canadian Government tightened the application requirements from 1970.
That year, the first three Passport Canada offices were opened in Montreal, Toronto and Vancouver.
Canada is a member of the Five Nations Passport Group, an international forum for cooperation between the passport issuing authorities in Australia, New Zealand, the United Kingdom and the United States to "share best practices and discuss innovations related to the development of passport policies, products and practices".
The first Canadian passports were issued in 1862, following the outbreak of the American Civil War, when the United States demanded more secure identification from Canadians wishing to cross the border.
The modern form of the Canadian passport came about in 1921.