NAICS 2022 nationalIndustry USA Verified: Census NAICS 2022 · 2026-01-01
324121
NAICS 324121 — Asphalt Paving Mixture and Block Manufacturing
Asphalt Paving Mixture and Block Manufacturing
NAICS 324121 is the national industry code for asphalt paving mixture and block manufacturing establishments in the United States. The Small Business Administration sets a size standard of 500 for this classification. It forms part of the hierarchical North American Industry Classification System maintained by the Census Bureau.
SBA: 500
View full SBA standard
Related industries in 32412 (Asphalt Paving, Roofing, and Saturated Materials Manufacturing)
View parent 32412Official Illustrative Examples
Primary activities officially recognized by Census Bureau / Statistics Canada:
asphalt and tar paving mixtures, blocks and road compounds made from purchased asphaltic materials coal tar paving materials, made from purchased coal tar
Official data
| Feature | Description |
|---|---|
| Official name | North American Industry Classification System (NAICS) 2022 |
| Issuing authority | U.S. Census Bureau with OMB, Statistics Canada, and INEGI |
| Tax authority | Internal Revenue Service (IRS) |
| Purpose | Statistical business classification and federal contracting (SAM.gov, SBA standards) |
| Used in | SAM.gov registration, SBA size determinations, IRS tax classification, SEC EDGAR (via SIC crosswalk) |
| Active since | 2022 (current edition) |
| Hierarchy level | Sector (2-digit) |
| Source | https://www.census.gov/naics/ |
NAICS hierarchy path
Trace the classification from the broadest sector down to this national industry code.
Cross-references & crosswalks
NAICS 2017 equivalent 324121
Asphalt Paving Mixture and Block Manufacturing
View full 2022 → 2017 crosswalkSBA size standard description
Asphalt Paving Mixture and Block Manufacturing
Changes to receipts-based standard: [object Object]
Trade codes using this NAICS
These Schedule B export codes explicitly reference NAICS 324121 in the Census trade classification files.