The head office, the Rega Centre, (home to the Rega operations center where all missions are coordinated) is a hangar located at the northeast section of Zurich Airport within the municipality of Kloten; the hangar has direct access to the runways of the airport. All Rega helicopters carry a crew of three: a pilot, an emergency physician, and a paramedic who is also trained to assist the pilot for radio communication, navigation, terrain/object avoidance, and winch operations. In some situations, such as evacuating cable cars or retrieving injured climbers from a rock face, the crew also consists of a specialist trained by the Swiss Alpine Club.