221210 — Natural Gas Distribution
Description
This industry comprises: (1) establishments primarily engaged in operating gas distribution systems (e.g., mains, meters); (2) establishments known as gas marketers that buy gas from the well and sell it to a distribution system; (3) establishments known as gas brokers or agents that arrange the sale of gas over gas distribution systems operated by others; and (4) establishments primarily engaged in transmitting and distributing gas to final consumers (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Exclusions & Cross-References
- Pipeline transportation of natural gas from process plants to local distribution systems--are classified in
- Industry 486210, Pipeline Transportation of Natural Gas;
- Operating liquefied natural gas (LNG) terminals without operating natural gas pipelines--are classified in
- U.S. Industry 488999, All Other Support Activities for Transportation; and
- Retailing liquefied petroleum (LP) gas via direct selling (i.e., home delivery)--are classified in Industry
- 457210, Fuel Dealers.
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 4923 - Natural Gas Transmission and Distribution (via SIC1987:4923→NAICS1997:22121→2002:221210→2007:221210→2012:221210→2017:221210→2022:221210)
- SIC 4924 - Natural Gas Distribution (via SIC1987:4924→NAICS1997:22121→2002:221210→2007:221210→2012:221210→2017:221210→2022:221210)
- SIC 4925 - Mixed, Manufactured, or Liquefied Petroleum Gas Production and/or Distribution (via SIC1987:4925→NAICS1997:22121→2002:221210→2007:221210→2012:221210→2017:221210→2022:221210)
- SIC 4931 - Electric and Other Services Combined (via SIC1987:4931→NAICS1997:22121→2002:221210→2007:221210→2012:221210→2017:221210→2022:221210)
- SIC 4932 - Gas and Other Services Combined (via SIC1987:4932→NAICS1997:22121→2002:221210→2007:221210→2012:221210→2017:221210→2022:221210)
- SIC 4939 - Combination Utilities, NEC (via SIC1987:4939→NAICS1997:22121→2002:221210→2007:221210→2012:221210→2017:221210→2022:221210)
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 3835 — Petroleum Production and Distribution Equipment
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 221210 valid in 2022? ▾
Yes, 221210 is a valid 6-digit 2022 NAICS national industry code representing 'Natural Gas Distribution' under Sector 22 in the official classification index.
What is the SBA size standard for NAICS code 221210? ▾
The Small Business Administration (SBA) has established a small business size standard of 1,150 employees for NAICS code 221210 (Natural Gas Distribution), calculated based on employees.
What is the legacy SIC equivalent for NAICS 221210? ▾
According to official Census Bureau concordance tables, NAICS code 221210 (Natural Gas Distribution) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 4923 - Natural Gas Transmission and Distribution, 4924 - Natural Gas Distribution, 4925 - Mixed, Manufactured, or Liquefied Petroleum Gas Production and/or Distribution, 4931 - Electric and Other Services Combined, 4932 - Gas and Other Services Combined, 4939 - Combination Utilities, NEC.
Related Pages & Tools
Further regulatory reference links for NAICS code 221210:
- Sector 22 Directory Hub — List of related industries in the Utilities sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 221210 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Natural Gas Distribution).
- 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.