NAICS Code 485111 — Mixed Mode Transit Systems

National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is one of 4 national industries under 48511 (Urban Transit Systems).

Code	485111
Title	Mixed Mode Transit Systems
Level	National Industry (6-digit)
Edition	NAICS 2022 edition
SBA size standard	$29 million in average annual receipts

Official definition (2022 NAICS)

This U.S. industry comprises establishments primarily engaged in operating local and suburban ground passenger transit systems using more than one mode of transport over regular routes and on regular schedules within a metropolitan area and its adjacent nonurban areas.

Is a business under 485111 "small"?

Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 485111 qualifies as a small business if it does not exceed $29 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 485111 sits in the hierarchy

Level	Code	Title
Sector	48-49	Transportation and Warehousing
Subsector	485	Transit and Ground Passenger Transportation
Industry Group	4851	Urban Transit Systems
NAICS Industry	48511	Urban Transit Systems
National Industry	485111	Mixed Mode Transit Systems

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
4111	Local and Suburban Transit

Related National Industry codes

• 485112 — Commuter Rail Systems
• 485113 — Bus and Other Motor Vehicle Transit Systems
• 485119 — Other Urban Transit Systems

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.