The Canadian government and border agencies have extensive powers to protect public health and safety during the COVID-19 pandemic. The Immigration and Refugee Protection Act and Quarantine Act give screening officers the authority to screen travelers for communicable diseases. Those likely suffering from a disease can be isolated, examined, or arrested. Travel restrictions have been imposed, banning most foreign nationals from entering Canada and closing the US border to non-essential travel. Exceptions are made for Canadian citizens and permanent residents. Special measures also apply to temporary and permanent residency applicants affected by service disruptions related to COVID-19.