483111 — Deep Sea Freight Transportation
Description
This U.S. industry comprises establishments primarily engaged in providing deep sea transportation of cargo to or from foreign ports (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Exclusions & Cross-References
- Establishments primarily engaged in providing deep sea transportation of cargo to and from domestic ports are
- classified in U.S. Industry 483113, Coastal and Great Lakes Freight Transportation.
- TRANSPORTATION AND WAREHOUSING 377
Overview Facts
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 4412 - Deep Sea Foreign Transportation of Freight (via SIC1987:4412→NAICS1997:483111→2002:483111→2007:483111→2012:483111→2017:483111→2022:483111)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC M1LB — OPERATION OF HIGHWAYS, ROADS, STREETS, BRIDGES, AND RAILWAYS
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 483111 valid in 2022? ▾
Yes, 483111 is a valid 6-digit 2022 NAICS national industry code representing 'Deep Sea Freight Transportation' under Sector 48-49 in the official classification index.
What is the SBA size standard for NAICS code 483111? ▾
The Small Business Administration (SBA) has established a small business size standard of 1,050 employees for NAICS code 483111 (Deep Sea Freight Transportation), calculated based on employees.
What is the legacy SIC equivalent for NAICS 483111? ▾
According to official Census Bureau concordance tables, NAICS code 483111 (Deep Sea Freight Transportation) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 4412 - Deep Sea Foreign Transportation of Freight.
Related Pages & Tools
Further regulatory reference links for NAICS code 483111:
- Sector 48-49 Directory Hub — List of related industries in the Transportation and Warehousing sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 483111 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Deep Sea Freight Transportation).
- IRS PBA Code for Cargo Shipping — Principal Business Activity tax reporting details.
- IRS PBA Code for Marine Transport — Principal Business Activity tax reporting details.
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.