The 330 Squadron is part of the National Air Ambulance Service. It carries out about 800 missions per year, or about ten percent of the total helicopter ambulance missions in Norway. The unit's helicopters are used when the ordinary helicopter ambulances (Eurocopter EC135, EC145 and AgustaWestland AW139) are unable to operate due to weather; missions in which a large cabin is needed such as due to the number of patients or an incubator; and in areas where the Sea Kings are closer and areas where there is no ordinary air ambulance service. Ambulance use must be permitted by the JRCCs.