# NAICS 48511: Urban Transit Systems

No SBA size standard is recorded for NAICS 48511.

| Field | Value |
| --- | --- |
| Code | 48511 |
| Title | Urban Transit Systems |
| Level | 5 |
| Parent | 4851 |
| Size standard | - |
| Footnote | - |

## Description

This industry comprises establishments primarily engaged in operating local and suburban passenger transit systems over regular routes and on regular schedules within a metropolitan area and its adjacent nonurban areas. Such transportation systems involve the use of one or more modes of transport including light rail, commuter rail, subways, and streetcars, as well as buses and other motor vehicles.

## Sources

- Census NAICS: https://www.census.gov/naics/
- SBA size standards: https://www.sba.gov/document/support-table-size-standards

## API and MCP

- REST: GET https://samgovapi.io/api/v1/naics/48511/size-standard?revenue_usd=...
- MCP tools: naics_lookup, size_standard_check

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