Prior to 1995, Nova Scotia relied on approximately 50 funeral home, private and public ambulance companies, the owners of which were represented by the Ambulance Operators Association of Nova Scotia (AOANS). The level of medical care, staff qualifications, type and condition of ambulances and supplies, and working conditions varied throughout the province. Most medical air transportation was provided by the Canadian Forces' 413 Transport and Rescue Squadron operating out of CFB Summerside (1968-1990) and CFB Greenwood (1990-present). 413 Squadron used search and rescue aircraft such as the CH-113 Labrador helicopter as well as the CC-115 Buffalo and later the CC-130 Hercules fixed-wing aircraft to deliver aid to the civil power missions.