HUBZone is a United States Small Business Administration (SBA) program for small companies that operate and employ people in Historically Under-utilized Business Zones (HUBZones). The HUBZone program was created in response to the HUBZone Empowerment Act created by the US Congress in 1998. Based on the Act, small businesses will be designated as HUBZone certified if they have the following criteria:The firm must be a small business based on the North American Industry Classification System (NAICS) for size standards. The business must be at least 51% owned and controlled by U.S. citizens, or a Community Development Corporation, an agricultural cooperative, or an Indian tribe. The firm's principal office must be in a HUBZone. 35% of the firm's total workforce must reside in a HUBZone. On average, about 3,000 entities register for HUBZone certification each year.