The Medium Extended Air Defence System (MEADS) Mode 5 Identification Friend or Foe (IFF) subsystem has received full certification for operation by the United States Department of Defence International AIMS (Air Traffic Control Radar Beacon System, Identification Friend or Foe, Mark XII/Mark XIIA, Systems) Program Office. The system is designed to ensure the safety of allied aircrews engaged in combat operations.

Mode 5 is the most secure IFF mode and provides positive identification of friendly platforms equipped with an IFF transponder. This helps to discriminate between friend and foe. Full certification by the DoD International AIMS Program Office is a milestone accomplishment for the MEADS program.