213113 — Support Activities for Coal Mining
Description
This U.S. industry comprises establishments primarily engaged in providing support activities for coal mining (except geophysical surveying and mapping, site preparation, construction, and transportation activities) on a contract or fee basis. Exploration for coal is included in this industry. Exploration services include traditional prospecting methods, such as taking core samples and making geological observations at prospective sites.
Overview Facts
| NAICS Code | 213113 |
|---|---|
| Industry Title | Support Activities for Coal Mining |
| SBA Size Standard | $27,500,000 |
| IRS PBA Code | 213110 (rolled-up match) |
| Sectors Hierarchy | Sector 21 → 213 → 2131 |
| 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 1241 - Coal Mining Services (via SIC1987:1241→NAICS1997:213113→2002:213113→2007:213113→2012:213113→2017:213113→2022:213113)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 213113:
- Sector 21 Directory Hub — List of related industries in the Mining, Quarrying, and Oil and Gas Extraction 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 2131
Frequently Asked Questions (FAQ)
Is 213113 a valid 2022 NAICS code?
NAICS 213113 is 'Support Activities for Coal Mining', a 2022 U.S. national industry under Sector 21 (Mining, Quarrying, and Oil and Gas Extraction); the SBA small-business size standard is $27,500,000.
What is the SBA size standard for NAICS 213113?
The SBA small business size standard for NAICS 213113 is $27,500,000 (based on receipts).
What is the legacy SIC code mapping for 213113?
NAICS code 213113 maps to the legacy 1987 SIC codes: 1241 - Coal Mining Services.