A new addition to the family of Quality System specifications shows its precocity by being more advanced than its predecessors. The certification program spreads the role of quality control from the design conception through the final product perhaps more thoroughly than in any previous system specification. It also incorporates the Quality Control System Plan as part of the FAA contract award, a step not taken under MIL-Q-9858A where only that specification is referenced in the contract. The new Advisory Circular extends the system found successful in achieving flight safety to air traffic control, navigational aids, and ground support equipment and systems.