424 Transport and Rescue Squadron, nicknamed "Tiger Squadron", is a Royal Canadian Air Force strategic transport and search and rescue unit based at Canadian Forces Base Trenton in the Canadian province of Ontario. The squadron is the primary provider of search and rescue response for the Trenton Search and Rescue Region, which extends from Quebec City to the Rocky Mountains, and from the Canada–United States border to the North Pole, covering an area of over ten million square kilometres in Central, Western, and Northern Canada.