When an agency competes a task order under a multiple-award contract, the agency must assign the task solicitation a NAICS code set forth in the underlying MAC.
As demonstrated in a recent SBA Office of Hearings and Appeals decision, when the MAC is assigned a single NAICS code, all task orders competed under that MAC will also be assigned that NAICS code–even if a prospective offeror believes that a different NAICS code will best describe the principal purpose of the task order acquisition.