488210 — Support Activities for Rail Transportation
Description
This industry comprises establishments primarily engaged in providing specialized services for railroad transportation, including servicing, routine repairing (except factory conversion, overhaul, or rebuilding of rolling stock), and maintaining rail cars; loading and unloading rail cars; and operating independent terminals.
Exclusions & Cross-References
- Providing railroad car rental--are classified in U.S. Industry 532411, Commercial Air, Rail, and Water
- Transportation Equipment Rental and Leasing;
- Factory conversion, overhaul, or rebuilding of railroad rolling stock--are classified in Industry 336510,
- Railroad Rolling Stock Manufacturing; and
- Providing rail car janitorial services--are classified in Industry 561720, Janitorial Services.
Overview Facts
| NAICS Code | 488210 |
|---|---|
| Industry Title | Support Activities for Rail Transportation |
| SBA Size Standard | $34,000,000 |
| IRS PBA Code | 488210 (exact match) |
| Sectors Hierarchy | Sector 48-49 → 488 → 4882 |
| Source / Verified | US Census 2022 NAICS Manual / 2026-06-28 |
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 4013 - Railroad Switching and Terminal Establishments (via SIC1987:4013→NAICS1997:48821→2002:488210→2007:488210→2012:488210→2017:488210→2022:488210)
- SIC 4741 - Rental of Railroad Cars (via SIC1987:4741→NAICS1997:48821→2002:488210→2007:488210→2012:488210→2017:488210→2022:488210)
- SIC 4789 - Transportation Services, NEC (via SIC1987:4789→NAICS1997:48821→2002:488210→2007:488210→2012:488210→2017:488210→2022:488210)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 488210:
- 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.
- 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.
Related Industries in 4882
Frequently Asked Questions (FAQ)
Is 488210 a valid 2022 NAICS code?
NAICS 488210 is 'Support Activities for Rail Transportation', a 2022 U.S. national industry under Sector 48-49 (Transportation and Warehousing); the SBA small-business size standard is $34,000,000.
What is the SBA size standard for NAICS 488210?
The SBA small business size standard for NAICS 488210 is $34,000,000 (based on receipts).
What is the legacy SIC code mapping for 488210?
NAICS code 488210 maps to the legacy 1987 SIC codes: 4013 - Railroad Switching and Terminal Establishments, 4741 - Rental of Railroad Cars, 4789 - Transportation Services, NEC.