AS9000, Aerospace Basic Quality System Standard, was developed by a group of US aerospace prime contractors, including Allied-Signal. Allison Engine Company, Boeing, General Electric Aircraft Engines, Lockheed Martin. McDonnell Douglas, Northrop Grumman, Pratt Whitney, Rockwell Collins, Sikorsky Aircraft, , and Hamilton Sundstrand. Significantly, the US government was not actively involved in the AS9000 standard's development. AS9000 was developed and issued under the auspices of the Society of Automotive Engineers.