DateChangesSept 23-27, 2013DSCA Policy Memo 13-48, Establish Nonrecurring Cost (NC) Charge –Airborne Warning and Control System (AWACS) Block 40/45 Mission Computing Upgrade (MCU) and the Next Generation Identify Friend or Foe UPX-40 Upgrade has been posted.This memo updates Appendix 1, USML VIII - Aircraft and Associated Equipment.