SIC 4011 — Railroads, Line-Haul Operating
SIC 4011 is 'Railroads, Line-Haul Operating', a 4-digit Standard Industrial Classification (SIC) code under Major Group 40: Railroad Transportation (Division E: Transportation, Communications, Electric, Gas, and Sanitary Services); it maps to modern 2022 NAICS code(s): 482111 (Line-Haul Railroads).
Description & Classification
SIC code 4011 representing 'Railroads, Line-Haul Operating' is an industry category in the Standard Industrial Classification (SIC) system under U.S. OSHA and Federal procurement registers.
Modern NAICS Crosswalk
Trace the modern equivalent classifications in the 2022 North American Industry Classification System (NAICS) database:
- NAICS 482111 - Line-Haul Railroads (via SIC1987:4011→NAICS1997:482111→2002:482111→2007:482111→2012:482111→2017:482111→2022:482111)
Classification Details
| SIC Code | 4011 |
|---|---|
| Industry Title | Railroads, Line-Haul Operating |
| Division | Division E: Transportation, Communications, Electric, Gas, and Sanitary Services |
| Major Group | Major Group 40: Railroad Transportation |
| Source / Verified | US Census 1987 SIC Concordance / 2026-06-28 |
Related Resources & Compliance Guides
Further regulatory reference links for legacy SIC code 4011:
- SIC Codes Complete Compliance Guide — Detailed history and active legal applications of the SIC classification framework.
- Why Legacy SIC Codes Persist Guide — How credit systems and the SEC still rely on SIC metadata.
- SIC ↔ NAICS Crosswalk Tool — Trace industrial code conversions dynamically.
- SIC Major Group 40 Hub — View other legacy industries in this business division.
Related Industries in Major Group 40
Frequently Asked Questions (FAQ)
What industry does SIC code 4011 represent?
SIC 4011 is 'Railroads, Line-Haul Operating', a 4-digit Standard Industrial Classification (SIC) code under Major Group 40: Railroad Transportation (Division E: Transportation, Communications, Electric, Gas, and Sanitary Services); it maps to modern 2022 NAICS code(s): 482111 (Line-Haul Railroads).
What is the modern 2022 NAICS mapping for SIC 4011?
SIC code 4011 maps to modern NAICS codes: 482111 - Line-Haul Railroads.