NAICS 311225

Overview

The North American Industry Classification System (NAICS) is the federal standard for classifying business establishments to support the collection, analysis, and publication of statistics about the U.S. economy. Established by the Office of Management and Budget in 1997 to replace SIC, it was jointly developed with Statistics Canada and Mexico’s INEGI to enable cross-country comparability; the current official vintage is 2022. ¹
NAICS 311225 covers establishments primarily engaged in manufacturing shortening and margarine from purchased fats and oils; refining and/or blending vegetable, oilseed, and tree‑nut oils from purchased oils; and blending purchased animal fats with purchased vegetable fats. NAICS cross‑references delineate boundaries with related oilseed crushing and rendering activities. ²

See also on G2X:

• G2X — NAICS 311225 overview: https://app.g2xchange.com/naics/311225
• G2X — NAICS 311222 Soybean Processing: https://app.g2xchange.com/naics/311222
• G2X — NAICS 311221 Wet Corn Milling: https://app.g2xchange.com/naics/311221

What this NAICS covers

• Manufacturing shortening and margarine from purchased fats and oils. ²
• Refining vegetable, oilseed, and tree‑nut oils from purchased oils. ²
• Blending purchased animal fats with purchased vegetable fats. ²
• Refining or blending soybean oil from purchased oil (classified here rather than in soybean crushing mills). ²
• Refining or blending corn oil from purchased oils (classified here rather than in wet corn milling). ²

Related NAICS and PSC codes

Type	Code	Descriptor
NAICS	311221	Wet Corn Milling (refining/blending corn oil in crushing mills is excluded from 311225). 2
NAICS	311222	Soybean Processing (soybean oil refining/blending in crushing mills is excluded from 311225). 2
NAICS	311223	Other Oilseed Processing (refining/blending in crushing mills is excluded from 311225). 2
PSC	8945	Food, Oils and Fats. 3

Key exclusions (per NAICS cross‑references)

• Rendering or refining animal fats and oils belongs to NAICS 31161 Animal Slaughtering and Processing, not 311225. ²
• Refining/blending soybean oil within soybean crushing mills is classified in NAICS 311222, not 311225. ²
• Refining/blending corn oil made by wet corn milling is classified in NAICS 311221, not 311225. ²
• Refining/blending oils within other oilseed or tree‑nut crushing mills is classified in NAICS 311223, not 311225. ²

Frequently asked questions

• What activities define NAICS 311225?
  NAICS 311225 includes making shortening and margarine from purchased oils, refining/blending vegetable and tree‑nut oils from purchased oils, and blending purchased animal and vegetable fats. It does not include oil refining within crushing mills or animal fat rendering. ²

• How does 311225 differ from 311222 and 311223?
  Codes 311222 and 311223 cover soybean and other oilseed processing (crushing). Refining or blending done within those crushing mills stays in those codes, whereas refining/blending from purchased oils is classified in 311225. ²

• Are animal fat rendering operations included in 311225?
  No. Rendering or refining animal fats and oils is classified under NAICS 31161 Animal Slaughtering and Processing, per the NAICS cross‑references. ²

• Does official guidance specify packaging or bottling under 311225?
  Not specified by official sources. ²

• Is 311225 recognized in the current (2022) NAICS vintage?
  Yes. The Census NAICS program maintains 2022 as the current vintage and provides official definitions and search tools for it. ¹

Useful resources

• G2X — NAICS 311225 overview: https://app.g2xchange.com/naics/311225
• U.S. Census Bureau — NAICS program main page (2022 vintage): https://www.census.gov/naics. ¹
• U.S. Census Bureau — NAICS 311225 (2022) official definition and cross‑references: https://www.census.gov/naics/?input=311225&year=2022. ²
• GSA — Product and Service Codes Manual (FY 2025), product group 89 (includes PSC 8945 Food, Oils and Fats): https://www.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202025.pdf. ³

References

1. U.S. Census Bureau. North American Industry Classification System (NAICS) — program landing and 2022 NAICS search. https://www.census.gov/naics
2. U.S. Census Bureau. NAICS 311225 (2022) — Fats and Oils Refining and Blending: definition, examples, and cross‑references. https://www.census.gov/naics/?input=311225&year=2022
3. General Services Administration. Product and Service Code Manual (April 2025). https://www.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202025.pdf