Date Changes June 10-16, 2018 DSCA Policy Memo 18-22 Alternative Pricing Methodology for Excess Defense Articles: Army M1A1 Main Battle Tank Structures and M88A1 Heavy Equipment Recovery Combat Utility Lift Evacuation System (HERCULES) Armored Recovery Vehicle (ARV) Structures at Sierra Army Depot and Anniston Army Depot has been posted. DSCA Policy Memo 18-32 Special Procedures Relating to Excess High Mobility Multipurpose Wheeled Vehicles has been posted.