NAICS 2022 nationalIndustry USA Verified: Census NAICS 2022 · 2026-01-01

NAICS 336510 — Railroad Rolling Stock Manufacturing

Railroad Rolling Stock Manufacturing

NAICS 336510 is the national industry code for railroad rolling stock manufacturing establishments in the United States. The Small Business Administration sets a size standard of 1,500 for this classification. It forms part of the hierarchical North American Industry Classification System maintained by the Census Bureau.

SBA: 1,500 View full SBA standard

Official Inclusions

manufacturing railway track maintenance equipment

Exclusions & Cross-References

Activities classified under other official NAICS codes:

activities of repair shops that are part of a railroad or local transit network (See 488210 Support activities for rail transportation)
manufacturing diesel engines and parts for locomotives (See 333619 Other engine and power transmission equipment manufacturing (CAN))
manufacturing locomotive diesel engines (See 333619 Other engine and power transmission equipment manufacturing (CAN))
manufacturing locomotive fuel lubricating or cooling medium pumps (See 333910 Pump and compressor manufacturing (CAN))
manufacturing mining rail cars (See 333130 Mining and oil and gas field machinery manufacturing (MEX))
manufacturing pumps for railroad equipment lubrication systems (See 333910 Pump and compressor manufacturing (CAN))
manufacturing underground mining machinery (See 333130 Mining and oil and gas field machinery manufacturing (MEX))

Official Illustrative Examples

Primary activities officially recognized by Census Bureau / Statistics Canada:

diesel-electric locomotives, manufacturing locomotives, manufacturing mining locomotives and parts, manufacturing rail laying and tamping equipment, manufacturing railroad cars, self-propelled, manufacturing railroad track equipment (e.g., rail layers, ballast distributors), manufacturing rapid transit cars and equipment, manufacturing subway cars, manufacturing

Complete Index of Activities (25 recognized activities) ▼

brakes and parts, railroad rolling stock, manufacturing

diesel-electric locomotives, manufacturing

electric locomotives, manufacturing

gasoline-electric locomotives, manufacturing

hopper cars (except underground mining), manufacturing

industrial locomotives and parts, manufacturing

light rail cars and equipment, manufacturing

locomotives, manufacturing

locomotives, rebuilding

lubrication systems, locomotive (except pumps), manufacturing

manufacturing railway track maintenance equipment

mining locomotives and parts, manufacturing

rail laying and tamping equipment, manufacturing

railroad cars and car equipment, manufacturing

railroad cars, rebuilding

railroad cars, self-propelled, manufacturing

railroad locomotives and parts (except diesel engines), manufacturing

railroad track equipment (e.g., rail layers, ballast distributors), manufacturing

rapid transit cars and equipment, manufacturing

special-purpose self-propelled railroad equipment (e.g., rail layers), manufacturing

steam engines (i.e., railroad locomotives), manufacturing

streetcars and car equipment (urban transit), manufacturing

subway cars, manufacturing

tank freight cars, manufacturing

trackless trolley buses (electric power from overhead or underground wires), manufacturing

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/