The Safety and Security Group of Transport Canada is responsible for the development of regulations and national standards, as well as for the implementation of monitoring, testing, inspections and subsidy programs, which contribute to safety and security in the aviation, marine, rail and road modes of transport.

The Group administers the delivery of aircraft services to government and other transportation bodies. The Group develops and enforces regulations, and standards under federal jurisdiction to protect public safety in the transportation of dangerous goods and to prevent unlawful interference in the aviation, marine and railway modes of transport. The Group also ensures that the Department is prepared to respond to transportation and transportation-related emergencies.