The Islands Fire and Rescue Service is the smallest in the country and the only one consisting of 100% provision by retained firefighters. Fire Safety advice and training is provided by an independent fire safety consultant assisted by local officers. All fire crew are sent to The International Fire Training School in Teeside for a six week course. The firefighters are also employed by the airport as the Civil Aviation Authority rule that all airports must have adequate fire and rescue cover. On St. Mary's the manning level is a minimum of 4 certificated firefighters to be on duty at any time.