311211 — Flour Milling
Description
This U.S. industry comprises establishments primarily engaged in (1) milling flour or meal from grains (except rice) or vegetables and/or (2) milling flour and preparing flour mixes or doughs (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Exclusions & Cross-References
- Preparing breakfast cereals from flour milled in the same establishment--are classified in Industry 311230,
- Breakfast Cereal Manufacturing;
- Manufacturing prepared flour mixes or doughs from flour ground elsewhere--are classified in U.S. Industry
- 311824, Dry Pasta, Dough, and Flour Mixes Manufacturing from Purchased Flour;
- Milling rice or cleaning and polishing rice--are classified in U.S. Industry 311212, Rice Milling;
- Wet milling corn and vegetables--are classified in U.S. Industry 311221, Wet Corn Milling and Starch
- Manufacturing; and
- Crushing soybeans and extracting soybean oil--are classified in U.S. Industry 311224, Soybean and Other
- Oilseed Processing.
Overview Facts
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 2034 - Dried and Dehydrated Fruits, Vegetables and Soup Mixes (via SIC1987:2034→NAICS1997:311211→2002:311211→2007:311211→2012:311211→2017:311211→2022:311211)
- SIC 2041 - Flour and Other Grain Mill Products (via SIC1987:2041→NAICS1997:311211→2002:311211→2007:311211→2012:311211→2017:311211→2022:311211)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC 3417 — Milling Machines
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 311211 valid in 2022? ▾
Yes, 311211 is a valid 6-digit 2022 NAICS national industry code representing 'Flour Milling' under Sector 31-33 in the official classification index.
What is the SBA size standard for NAICS code 311211? ▾
The Small Business Administration (SBA) has established a small business size standard of 1,050 employees for NAICS code 311211 (Flour Milling), calculated based on employees.
What is the legacy SIC equivalent for NAICS 311211? ▾
According to official Census Bureau concordance tables, NAICS code 311211 (Flour Milling) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 2034 - Dried and Dehydrated Fruits, Vegetables and Soup Mixes, 2041 - Flour and Other Grain Mill Products.
Related Pages & Tools
Further regulatory reference links for NAICS code 311211:
- Sector 31-33 Directory Hub — List of related industries in the Manufacturing sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 311211 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Flour Milling).
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.