# NAICS 336510: Railroad Rolling Stock Manufacturing

The SBA size standard for NAICS 336510 is 1,500 employees (13 CFR 121.201).

| Field | Value |
| --- | --- |
| Code | 336510 |
| Title | Railroad Rolling Stock Manufacturing |
| Level | 6 |
| Parent | 33651 |
| Size standard | 1,500 employees |
| Footnote | - |

## Description

This industry comprises establishments primarily engaged in one or more of the following: (1) manufacturing and/or rebuilding locomotives, locomotive frames, and parts; (2) manufacturing railroad, street, and rapid transit cars and car equipment for operation on rails for freight and passenger service; and (3) manufacturing rail layers, ballast distributors, rail tamping equipment, and other railway track maintenance equipment.

## 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/336510/size-standard?revenue_usd=...
- MCP tools: naics_lookup, size_standard_check

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