NAICS Code 485210 — Interurban and Rural Bus Transportation

National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is the only national industry under 48521 (Interurban and Rural Bus Transportation).

Code	485210
Title	Interurban and Rural Bus Transportation
Level	National Industry (6-digit)
Edition	NAICS 2022 edition
SBA size standard	$32 million in average annual receipts

Official definition (2022 NAICS)

This industry comprises establishments primarily engaged in providing bus passenger transportation over regular routes and on regular schedules, principally outside a single metropolitan area and its adjacent nonurban areas.

Is a business under 485210 "small"?

Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 485210 qualifies as a small business if it does not exceed $32 million in average annual receipts. Small-business status determines eligibility for federal set-aside contracts, SAM.gov certifications and SBA loan programs — receipts are averaged over the latest 5 fiscal years.

Where 485210 sits in the hierarchy

Level	Code	Title
Sector	48-49	Transportation and Warehousing
Subsector	485	Transit and Ground Passenger Transportation
Industry Group	4852	Interurban and Rural Bus Transportation
NAICS Industry	48521	Interurban and Rural Bus Transportation
National Industry	485210	Interurban and Rural Bus Transportation

Related SIC codes

Via the official U.S. Census concordance (1987 SIC ↔ NAICS), shown only where the industry definition is unchanged in NAICS 2022.

SIC code	Title
4131	Intercity and Rural Bus Transportation

Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.