41 C.F.R. § 101-30.101-9

Item entry control means the functional responsibility of GSA/DOD cataloging to minimize the number of items in the supply system by: (a) Establishing controls that prevent unessential new items from entering the supply system; (b) promoting the development of standards and use of standard items; and (c) eliminating items having nonstandard characteristics, and isolating and recommending the use of duplicate or replacement items.