NAICS Code Self-Certification

How to Obtain

During SAM.gov registration, businesses select all NAICS codes that describe their primary and secondary lines of business. The SBA sets size standards for each NAICS code based on either annual revenue or number of employees. Companies should review SBA Table of Size Standards to ensure they qualify as small under each selected code.

Contracting Relevance

NAICS codes directly determine small business eligibility for set-aside contracts. When a contracting officer issues a solicitation, they assign a NAICS code that determines which size standard applies. Contractors self-certify their size at the time of offer. Challenges to size status (size protests) are adjudicated by the SBA Office of Hearings and Appeals.

Requirements

• Understanding of SBA size standards per NAICS code
• Accurate revenue or employee count data
• Annual recertification during SAM renewal
• Must recertify after mergers or acquisitions

Other verification Identifiers

Other Entity Identifiers