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

NAICS 488210 — Support Activities for Rail Transportation

Support Activities for Rail Transportation

NAICS 488210 is the national industry code for support activities for rail transportation establishments in the United States. The Small Business Administration sets a size standard of $34.0 for this classification. It forms part of the hierarchical North American Industry Classification System maintained by the Census Bureau.

SBA: $34.0 View full SBA standard

Official Inclusions

operating railway terminals and stations

Exclusions & Cross-References

Activities classified under other official NAICS codes:

cleaning windows (See 561721 Window cleaning services (CAN))
providing passenger rail car janitorial services (See 561722 Janitorial services (except window cleaning) (CAN))
railroad rolling stock manufacturing and railroad cars rebuilding (See 336510 Railroad rolling stock manufacturing)

Official Illustrative Examples

Primary activities officially recognized by Census Bureau / Statistics Canada:

cleaning of rail cars (freight) container loading or unloading service, railroad grain levelling and trimming service, in railroad cars loading and unloading rail freight cars locomotives and railroad cars, repair maintenance of rights-of-way and structures, railway railroad car repair shops (except factory rebuilding of rolling stock) railroad terminals

Complete Index of Activities (12 recognized activities) ▼

cleaning of rail cars (freight)

cleaning railroad ballasts

container loading or unloading service, railroad

grain levelling and trimming service, in railroad cars

loading and unloading rail freight cars

locomotives and railroad cars, repair

maintenance of rights-of-way and structures, railway

operating railway terminals and stations

railroad car loading and unloading

railroad car repair shops (except factory rebuilding of rolling stock)

railroad terminals

switching services, railroad

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/