SIC 4131 — Intercity and Rural Bus Transportation
Description & Classification
SIC code 4131 representing 'Intercity and Rural Bus Transportation' 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 485210 - Interurban and Rural Bus Transportation (via SIC1987:4131→NAICS1997:48521→2002:485210→2007:485210→2012:485210→2017:485210→2022:485210)
Classification Details
| SIC Code | 4131 |
|---|---|
| Industry Title | Intercity and Rural Bus Transportation |
| Division | Division E: Transportation, Communications, Electric, Gas, and Sanitary Services |
| Major Group | Major Group 41: Local and Suburban Transit and Interurban Highway Passenger Transportation |
| Source / Verified | US Census 1987 SIC Concordance / 2026-06-28 |
Related Resources & Compliance Guides
Further regulatory reference links for legacy SIC code 4131:
- 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 41 Hub — View other legacy industries in this business division.
Related Industries in Major Group 41
Frequently Asked Questions (FAQ)
What industry does SIC code 4131 represent?
SIC 4131 is 'Intercity and Rural Bus Transportation', a 4-digit Standard Industrial Classification (SIC) code under Major Group 41: Local and Suburban Transit and Interurban Highway Passenger Transportation (Division E: Transportation, Communications, Electric, Gas, and Sanitary Services); it maps to modern 2022 NAICS code(s): 485210 (Interurban and Rural Bus Transportation).
What is the modern 2022 NAICS mapping for SIC 4131?
SIC code 4131 maps to modern NAICS codes: 485210 - Interurban and Rural Bus Transportation.