The tests were conducted in September and October off the Washington coast and over Puget Sound.
Completion of CMDS testing is a key step toward verification of the Wedgetail AEW&C aircraft's overall Electronic Warfare Self-Protection (EWSP) capability.
EWSP is designed to warn aircrews about and protect against missiles targeting the aircraft.
The CMDS responds to threats by releasing chaff and flares to decoy incoming missiles away from the aircraft.
Boeing and its industry supplier, BAE Systems, developed and integrated the CMDS system.
Testing included 19 flights that dispensed more than 500 units of chaff and flares.
The AEW&C team collected data via five high-speed video cameras mounted on the Wedgetail aircraft and an additional video camera attached to a T-33 chase plane.
"The testing program verified that the Boeing-installed self-protection system will effectively counter its intended threats reliably and safely," Kermit Hollinger, Electronic Warfare manager for Boeing AEW&C Programs, said.