As of 2026, the ArriveCAN app is no longer a mandatory requirement for travelers entering Canada, a significant shift from the strict pandemic-era regulations. The Canadian government removed the mandatory requirement for COVID-19 health information, including proof of vaccination and quarantine plans, in late 2022. However, while no longer "required" for health screening, the app has been repurposed as a voluntary tool to expedite the border crossing process. Travelers can use the "Advance Declaration" feature within the ArriveCAN app to submit their customs and immigration declaration up to 72 hours before arriving at major international airports in Canada. This allows users to skip the traditional paper forms or long queues at airport kiosks, moving through the "Express" lanes instead. So, while you will not be denied entry or fined for not having the app, it is highly recommended as a convenience feature for those looking to minimize their time spent at the border. Always ensure you have your physical passport and travel documents ready, as the app is a supplement to, not a replacement for, official identification and legal entry requirements.