NAICS 2022 nationalIndustry USA Verified: Census NAICS 2022 · 2026-01-01
488310
NAICS 488310 — Port and Harbor Operations
Port and Harbor Operations
NAICS 488310 is the national industry code for port and harbor operations establishments in the United States. The Small Business Administration sets a size standard of $47.0 for this classification. It forms part of the hierarchical North American Industry Classification System maintained by the Census Bureau.
SBA: $47.0
View full SBA standard
Exclusions & Cross-References
Activities classified under other official NAICS codes:
- other heavy and civil engineering construction water project (e.g., dredging canals, channels, waterways, ditches) (See 237990 Other heavy and civil engineering construction (US))
Official Illustrative Examples
Primary activities officially recognized by Census Bureau / Statistics Canada:
canal operations harbour operation lighthouse operation piers, docks and wharves, maintenance seaway operation waterfront terminal operation
Complete Index of Activities (11 recognized activities) ▼
canal locks, operating
canal maintenance (except dredging)
canal operations
dock, marine, operation
harbour operation
lighthouse operation
piers, docks and wharves, maintenance
piers, docks and wharves, operation
port facilities operation
seaway operation
waterfront terminal operation
Official data
| Feature | Description |
|---|---|
| Official name | North American Industry Classification System (NAICS) 2022 |
| Issuing authority | U.S. Census Bureau with OMB, Statistics Canada, and INEGI |
| Tax authority | Internal Revenue Service (IRS) |
| Purpose | Statistical business classification and federal contracting (SAM.gov, SBA standards) |
| Used in | SAM.gov registration, SBA size determinations, IRS tax classification, SEC EDGAR (via SIC crosswalk) |
| Active since | 2022 (current edition) |
| Hierarchy level | Sector (2-digit) |
| Source | https://www.census.gov/naics/ |
NAICS hierarchy path
Trace the classification from the broadest sector down to this national industry code.
Cross-references & crosswalks
SBA size standard description
Port and Harbor Operations
Changes to receipts-based standard: [object Object]