Government of Canada Continues Educational Approach to ArriveCAN Submission as Border Vaccination Mandate Looms Monday December 06, 2021 | Business Conditions, COVID-19, News Releases With proof of vaccination now required for all travellers through ArriveCAN, the Government of Canada is reminding the trucking industry that the submission of ArriveCAN data remains a mandatory pre-arrival requirement, but they confirm that they will continue to work with the industry and take an education-first approach until January 15, 2022 when the border vaccination mandate comes into force.