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

NAICS 488490 — Other Support Activities for Road Transportation

Other Support Activities for Road Transportation

NAICS 488490 is the national industry code for other support activities for road transportation establishments in the United States. The Small Business Administration sets a size standard of $18.0 for this classification. It forms part of the hierarchical North American Industry Classification System maintained by the Census Bureau.

SBA: $18.0 View full SBA standard

Exclusions & Cross-References

Activities classified under other official NAICS codes:

owner/operator independent truck driver (See 484 Truck transportation)

Official Illustrative Examples

Primary activities officially recognized by Census Bureau / Statistics Canada:

bridge, tunnel and highway operation bus terminal operation, independent commercial vehicle safety inspection, without repairs flagging service (i.e., traffic control) inspection or weighing service connected to truck transportation pilot car services (i.e., wide load warning service) snow clearing, highways and bridges, road transport service street cleaning service toll bridge operation toll roads, operation of truck loading and unloading service trucking terminals, independent, with or without maintenance facilities

Complete Index of Activities (20 recognized activities) ▼

bridge, tunnel and highway operation

bus terminal operation, independent

cargo surveyors, truck transportation

commercial vehicle safety inspection, without repairs

flagging service (i.e., traffic control)

independent truck driver to road transportation (except owner/operator)

inspection or weighing service connected to truck transportation

oiling and salting roads for dust control

pilot car services (i.e., wide load warning service)

road sanding and salting, on contract

shunting of trailers in truck terminal

snow clearing, highways and bridges, road transport service

snow removal, highway

street cleaning service

toll bridge operation

toll roads, operation of

truck loading and unloading service

truck weighing station operation

trucking terminals, independent, with or without maintenance facilities

tunnel operation, vehicular

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/