A HUBZone SBC that has received SBA's notice of certification, but is not on the List within 10 business days thereafter, should immediately notify the D/HUB in writing at U.S. Small Business Administration, 409 Third Street, SW., Washington, DC 20416 or via e-mail at hubzone@sba.gov. The concern must appear on the List to be eligible for HUBZone contracts. [69 FR 29423, May 24, 2004]