# NAICS 48311: Deep Sea, Coastal, and Great Lakes Water Transportation

No SBA size standard is recorded for NAICS 48311.

| Field | Value |
| --- | --- |
| Code | 48311 |
| Title | Deep Sea, Coastal, and Great Lakes Water Transportation |
| Level | 5 |
| Parent | 4831 |
| Size standard | - |
| Footnote | - |

## Description

This industry comprises establishments primarily engaged in providing deep sea, coastal, Great Lakes, and St. Lawrence Seaway water transportation. Marine transportation establishments using the facilities of the St. Lawrence Seaway Authority Commission are considered to be using the Great Lakes Water Transportation System.

## 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/48311/size-standard?revenue_usd=...
- MCP tools: naics_lookup, size_standard_check

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