Home / Official sources
NAICS Intel
The official source desk
Start with authoritative material, then use our guides to organize the work.
Sources for this library
- U.S. Census Bureau — Official NAICS search and reference files ↗
- 2022 NAICS United States Manual ↗
- FAR 19.102 — NAICS and small business size standards ↗
- 13 CFR 121.201 — SBA size standards by NAICS ↗
- SBA — Table of size standards ↗
- SBA — NAICS appeals ↗
- FAR 19.103 — NAICS designation appeals ↗
- SAM.gov — Entity registration ↗
- SAM.gov — Contract opportunities ↗
- DoD Procurement Toolbox — Product Service Code tool ↗
- BLS — Industry classification and Census concordances ↗
How to use a source
- Confirm that it applies to your situation and contract.
- Record its title, URL, edition, and the date you checked it.
- Separate a source statement from your own assumption or worked example.
- Return to the current source when a decision, submission, or claim depends on it.
Each article links the specific material behind its factual context. Examples and worksheets are original educational aids, not official forms or government determinations.