# NAICS 3331: Agriculture, Construction, and Mining Machinery Manufacturing

No SBA size standard is recorded for NAICS 3331.

| Field | Value |
| --- | --- |
| Code | 3331 |
| Title | Agriculture, Construction, and Mining Machinery Manufacturing |
| Level | 4 |
| Parent | 333 |
| Size standard | - |
| Footnote | - |

## Description

This industry group comprises establishments primarily engaged in manufacturing one or more of the following: (1) farm machinery and equipment, power mowing equipment, and other powered home lawn and garden equipment; (2) construction machinery, surface mining machinery, and logging equipment; and (3) oil and gas field and underground mining machinery and 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/3331/size-standard?revenue_usd=...
- MCP tools: naics_lookup, size_standard_check

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