Consumables are often required in daily operations and to sustain the product or equipment. They may comprise such things as cleaning solutions and swabs or the paper and labels required by printers associated with the end items. Frequently, different consumables are managed by different CMCs other than the one acquiring the item. The client and item manager must assure that these other offices are brought into the process early in the development cycle and are kept fully involved throughout the life cycle. The CMC with the primary purchasing responsibility should lead the coordination effort.