The North American Industry Classification System (NAICS) assigns codes to classify businesses by industry. In federal contracting,
NAICS codes determine small business size standards (by revenue or employee count), influence set-aside eligibility, and guide
market research. Each solicitation lists a primary NAICS; offerors must confirm alignment between their capabilities and the
selected code. Accurate NAICS alignment affects teaming, eligibility, and competitive landscape. Businesses should maintain their
NAICS codes in SAM.gov and ensure they match their offerings.
NAICS Code
Industry classification used to determine small business size standards and market segments.
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Related Glossary Terms
The official compilation of permanent U.S. federal laws, providing the statutory basis for many contracting requirements.
A global classification system used to categorize products and services for procurement and spend analysis.
A unique 12-character identifier assigned via SAM.gov to organizations doing business with the federal government, replacing the DUNS number.
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