JOHN WOLFF
AUTHORIZEDDBA: WOLFF TREE SERVICE
USDOT
4034963
MC Number
N/A
Fleet Size
1
Total Drivers
1
Last updated: March 16, 2026
Broker verification report
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Safety overview
JOHN WOLFF is a small intrastate only (non-hazmat) motor carrier based in HAMMOND, Indiana, operating 1 power unit with 1 drivers. CarrierOwl is currently validating BASIC percentile display against the official FMCSA SMS portal; use the inspection, out-of-service, crash, authority, and insurance data below as the primary public safety indicators on this page. No crashes on file.
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BASIC scores
Under reviewCarrierOwl is validating BASIC percentile calculations against the official FMCSA SMS portal. Until that review is complete, use FMCSA directly for current BASIC percentiles and use the inspection, out-of-service, crash, authority, and insurance data on this page as supporting indicators.
BASIC percentile display is temporarily paused while we validate CarrierOwl's methodology against the official FMCSA SMS portal.
Company details
- Entity Type
- N/A
- Carrier Operation
- Intrastate Only (Non-Hazmat)
- Operation Classification
- Private (Property)
- Cargo Carried
- N
- Hazmat
- No
- Safety Rating Date
- N/A
Inspections
0
Total
—
Driver %
Insurance on file
No insurance records on file with FMCSA.
Crash history
0
Total Crashes
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Frequently asked questions
Is JOHN WOLFF authorized to operate?
Yes. JOHN WOLFF (USDOT #4034963) currently holds "AUTHORIZED" status with FMCSA. They're registered as an intrastate only (non-hazmat) carrier.
What is JOHN WOLFF's safety record?
JOHN WOLFF has 0 inspections on file and no crashes on record. They do not show a formal FMCSA safety rating in CarrierOwl's current data. CarrierOwl is validating BASIC percentile display against the official FMCSA SMS portal, so brokers should verify current BASIC percentiles directly with FMCSA before relying on them.
How many trucks does JOHN WOLFF operate?
JOHN WOLFF operates 1 power unit with 1 driver on file. That makes them a small carrier.
Does JOHN WOLFF transport hazardous materials?
No. JOHN WOLFF does not have a hazardous materials flag in the FMCSA database.
Where is JOHN WOLFF located?
JOHN WOLFF is based in HAMMOND, Indiana at 6836 ONTARIO AVE, 46323. Phone: (219) 678-4641.