621910 — Ambulance Services
Description
This industry comprises establishments primarily engaged in providing transportation of patients by ground or air, along with medical care. These services are often provided during a medical emergency but are not restricted to emergencies. The vehicles are equipped with lifesaving equipment operated by medically trained personnel.
Overview Facts
| NAICS Code | 621910 |
|---|---|
| Industry Title | Ambulance Services |
| SBA Size Standard | $22,500,000 |
| IRS PBA Code | 621900 (rolled-up match) |
| Sectors Hierarchy | Sector 62 → 621 → 6219 |
| 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 4119 - Local Passenger Transportation, NEC (via SIC1987:4119→NAICS1997:62191→2002:621910→2007:621910→2012:621910→2017:621910→2022:621910)
- SIC 4522 - Air Transportation, Nonscheduled (via SIC1987:4522→NAICS1997:62191→2002:621910→2007:621910→2012:621910→2017:621910→2022:621910)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 621910:
- Sector 62 Directory Hub — List of related industries in the Health Care and Social Assistance 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 6219
Frequently Asked Questions (FAQ)
Is 621910 a valid 2022 NAICS code?
NAICS 621910 is 'Ambulance Services', a 2022 U.S. national industry under Sector 62 (Health Care and Social Assistance); the SBA small-business size standard is $22,500,000.
What is the SBA size standard for NAICS 621910?
The SBA small business size standard for NAICS 621910 is $22,500,000 (based on receipts).
What is the legacy SIC code mapping for 621910?
NAICS code 621910 maps to the legacy 1987 SIC codes: 4119 - Local Passenger Transportation, NEC, 4522 - Air Transportation, Nonscheduled.