The Divisional Ammunition Column collected ammunition from the Army Service Corps Divisional Ammunition Park, as the higher movement and supply of ammunition was coordinated at Corps level. A second scale of ammunition was stored in the Divisional Ammunition Park whilst a third scale was stored in the Corps Ammunition Park, which received and held replenishment from the Corps Ordnance Depot. Mechanical transport companies of the Army Service Corps carried out ammunition supply for RGA Heavy and Siege Batteries, given one company was included within each Army and Corps.