SIC Code 4499 — Water Transportation Services, Not Elsewhere Classified

4-digit industry in the 1987 Standard Industrial Classification — still requested by banks, insurers, SEC filings and legacy systems.

Code	4499
Title	Water Transportation Services, Not Elsewhere Classified
System	SIC 1987 (final edition — replaced by NAICS in 1997)

The SIC was last revised in 1987 and officially superseded by NAICS in 1997, but it never fully disappeared: the SEC still tags EDGAR filings with SIC codes, and many banks, insurers and legacy databases keep requesting it. That is why converting between the two systems is still routine work.

NAICS equivalents of SIC 4499

From the official U.S. Census concordance (1987 SIC → 2002 NAICS). Where the 2002 code no longer exists in NAICS 2022, the closest current code is shown.

NAICS 2002	Title (2002)	Current 2022 code
483211	Inland Water Freight Transportation	483211 (same code)
488310	Port and Harbor Operations	488310 (same code)
488330	Navigational Services to Shipping	488330 (same code)
488390	Other Support Activities for Water Transportation	488390 (same code)
532411	Commercial Air, Rail, and Water Transportation Equipment Rental and Leasing	532411 (same code)
541990	All Other Professional, Scientific, and Technical Services	541990 (same code)

Other SIC codes in 44xx

• 4412 — Deep Sea Foreign Transportation of Freight
• 4424 — Deep Sea Domestic Transportation of Freight
• 4432 — Freight Transportation on the Great Lakes-St. Lawrence Seaway
• 4449 — Water Transportation of Freight, Not Elsewhere Classified
• 4481 — Deep Sea Transportation of Passengers, Except by Ferry
• 4482 — Ferries
• 4489 — Water Transportation of Passengers, Not Elsewhere Classified
• 4491 — Marine Cargo Handling
• 4492 — Towing and Tugboat Services
• 4493 — Marinas

Data: 1987 SIC titles (OSHA/Census) and official Census concordance — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.