The Data Link Systems Subcommittee develops and maintains ARINC Standards that promote efficient transfer of ACARS and ATS data between the aircraft and the ground. The AEEC DLK Systems Subcommittee meets jointly with RTCA SC-214 and EUROCAE WG-92. Together they monitor CPDLC operation and work at aligning the VHF Data Link (VDL) Mode 2 Industry Standards. These standards benefit the FAA Data Comm and European Data Link Services (DLS) programs.