325311 — Nitrogenous Fertilizer Manufacturing
Description
This U.S. industry comprises establishments primarily engaged in one or more of the following: (1) manufacturing nitrogenous fertilizer materials; (2) manufacturing fertilizers from sewage or animal waste; and (3) manufacturing nitrogenous materials and mixing with other ingredients into fertilizers (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
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 2873 - Nitrogenous Fertilizers (via SIC1987:2873→NAICS1997:325311→2002:325311→2007:325311→2012:325311→2017:325311→2022:325311)
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 8720 — Fertilizers
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 325311 valid in 2022? ▾
Yes, 325311 is a valid 6-digit 2022 NAICS national industry code representing 'Nitrogenous Fertilizer Manufacturing' under Sector 31-33 in the official classification index.
What is the SBA size standard for NAICS code 325311? ▾
The Small Business Administration (SBA) has established a small business size standard of 1,050 employees for NAICS code 325311 (Nitrogenous Fertilizer Manufacturing), calculated based on employees.
What is the legacy SIC equivalent for NAICS 325311? ▾
According to official Census Bureau concordance tables, NAICS code 325311 (Nitrogenous Fertilizer Manufacturing) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 2873 - Nitrogenous Fertilizers.
Related Pages & Tools
Further regulatory reference links for NAICS code 325311:
- 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 325311 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Nitrogenous Fertilizer Manufacturing).
- 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.