SIC Code 5599 — Automotive Dealers, Not Elsewhere Classified

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

Code	5599
Title	Automotive Dealers, 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The SIC was last revised in 1987 and officially superseded by NAICS in 1997, but it never fully disappeared: the SEC still tags EDGAR filings with SIC codes, and many banks, insurers and legacy databases keep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 5599

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
441229	All Other Motor Vehicle Dealers	superseded — closest: 44122 Motorcycle, Boat, and Other Motor Vehicle Dealers

Other SIC codes in 55xx

• 5511 — Motor Vehicle Dealers (New and Used)
• 5521 — Motor Vehicle Dealers (Used Only)
• 5531 — Auto and Home Supply Stores
• 5541 — Gasoline Service Stations
• 5551 — Boat Dealers
• 5561 — Recreational Vehicle Dealers
• 5571 — Motorcycle Dealers

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.