# NAICS 491: Postal Service

No SBA size standard is recorded for NAICS 491.

| Field | Value |
| --- | --- |
| Code | 491 |
| Title | Postal Service |
| Level | 3 |
| Parent | 48-49 |
| Size standard | - |
| Footnote | - |

## Description

The Postal Service subsector includes the activities of the National Post Office and its subcontractors operating under a universal service obligation to provide mail services, and using the infrastructure required to fulfill that obligation. These services include delivering letters and small parcels. These articles can be described as those that can be handled by one person without using special equipment. This allows the collection, pick-up, and delivery operations to be done with limited labor costs and minimal equipment. Sorting and transportation activities, where necessary, are generall

## 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/491/size-standard?revenue_usd=...
- MCP tools: naics_lookup, size_standard_check

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