This minor group comprises transportation officers and controllers, including air pilots, flight engineers and flying instructors; air traffic controllers and related occupations; deck officers in water transport; engineer officers in water transport; and railway traffic controllers and marine traffic regulators. They are employed by airline, air freight, air services, and marine transportation companies; flying schools, and other public and private sector aircraft operators; port, harbour, canal, and lock authorities; and NAV Canada, the Canadian Armed Forces, the Canadian Coast Guard, and other federal government departments.