NAICS Codes for Government Contracts: A Practical Guide
NAICS codes classify business activity. They are useful search signals, but they do not replace a careful reading of the solicitation or an eligibility review.
What a NAICS code tells you
Contracting officers assign a primary NAICS code to a federal solicitation based on its principal purpose. That code connects the requirement to an industry and an SBA size standard.
How to identify relevant codes
Start with work your company actually performs. Review codes used on comparable awards and solicitations, then compare their official descriptions with the expected scope.
- Use specific service and product descriptions
- Review both broad sectors and narrower industries
- Keep a short list of primary and adjacent codes
- Do not claim capabilities solely because a code appears attractive
Why the code matters for eligibility
The assigned NAICS code helps determine the applicable small-business size standard. Eligibility can also depend on affiliation, set-aside requirements, representations, registrations, and solicitation-specific rules.
Use codes together with keywords
A NAICS-only search can include unrelated work within the same industry. Combine codes with capability terms, exclusions, geography, and notice filters, then verify each result against the original notice.