4 Brothers Transportation LLC

USDOT activeAuthority activeCarrier · Interstate
  • USDOT4031029
  • MC1522964
  • LocationOntario, CA
  • Phone(323) 707-0081
  • Fleet1 power units · 2 drivers

4 Brothers Transportation LLC (USDOT 4031029, MC-1522964) is an interstate motor carrier based in Ontario, California with 1 power unit and 2 drivers reported to FMCSA. Its USDOT number and operating authority are active. FMCSA records list 2 roadside inspections in the last 24 months.

Verification snapshot · FMCSA data as of Nov 11, 2026

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Operating authority

Status from the FMCSA Company Census File, November 11, 2026

DocketAuthority typeStatus
MC-1522964Common carrierActive

First granted on May 26, 2023 · see full authority history.

Insurance

FMCSA legacy licensing records (last updated May 2026); filings may have changed since

  • Liability (BIPD) required$750,000
  • Liability (BIPD) on file$750,000
  • Cargo insurance required / on fileNo / No
  • Bond required / on fileNo / No

Filings on file

TypeInsurerCoverageEffective
Liability (BIPD) BMC-91XProfessional Transportation Rrg Inc$750,000Apr 8, 2026
Insurance history: 4 past filings
TypeInsurerEffectiveEndedReason
Liability (BIPD)Bulldog National Rrg Group IncSep 11, 2025Feb 15, 2026Cancel
Liability (BIPD)Bulldog National Rrg Group IncMay 22, 2025May 22, 2025Replaced
Liability (BIPD)Bulldog National Rrg Group IncMay 20, 2024May 20, 2025Cancel
Liability (BIPD)Aegis Security Insurance CompanyMay 20, 2023May 20, 2024Term / cancl

Process agent (BOC-3)

Process Agent Service Company, Inc., Sioux Falls, SD

Inspections and crashes

Last 24 months · FMCSA Vehicle Inspection File and Crash File

2
Inspections
0 with no violations
50.0%
Driver out-of-service
1 of 2 inspections
0.0%
Vehicle out-of-service
0 of 2 inspections
0
Crashes
0 fatal · 0 injury · 0 tow-away

Inspected most often in: Arizona (2).

Most recent inspection on file: January 14, 2026.

FMCSA safety rating: Not rated

Inspection and crash counts come from FMCSA records and are shown as reported. They are not a safety rating. A crash record does not mean the carrier was at fault. FMCSA has not rated a carrier unless a safety rating is listed. For FMCSA’s own data and its explanation, see the FMCSA SAFER Company Snapshot.

Out-of-service rates are calculated by CheckTrucking from inspection records (driver: levels I, II, III, VI; vehicle: levels I, II, V, VI). They are not FMCSA scores.

Authority history

FMCSA licensing records (Motus and legacy L&I) · migration-only status adjustments are not shown

  1. Reinstated — Common carrier authority
  2. Involuntary revocation — Common carrier authority
  3. Involuntary revocation — Common carrier authorityDiscontinued revocation on December 23, 2025
  4. Involuntary revocation — Common carrier authorityDiscontinued revocation on August 25, 2025
  5. Involuntary revocation — Common carrier authorityDiscontinued revocation on May 23, 2025
  6. Involuntary revocation — Common carrier authorityDiscontinued revocation on May 14, 2024
  7. Involuntary revocation — Common carrier authorityDiscontinued revocation on August 14, 2023
  8. Involuntary revocation — Common carrier authorityDiscontinued revocation on August 2, 2023
Show 1 earlier event
  1. Granted — Common carrier authorityRevoked on February 23, 2026

Fleet and operations

From the company’s own registration (Form MCS-150), updated April 8, 2026

Power units
1
Trucks
1
Tractors owned
1
Trailers owned
1
Drivers
2
CDL drivers
2
Interstate drivers
2
Miles traveled
93,568 (2025)
Classification
Authorized for hire
Hazardous materials
No
USDOT registered
February 20, 2023
Address
1105 W J St, Ontario, CA 91762
Phone (registered with FMCSA)
(323) 707-0081

Cargo carried

  • General freight

Key facts

  • USDOT number 4031029 was registered on February 20, 2023.
  • Operating authority MC-1522964 was first granted on May 26, 2023.
  • The company last updated its FMCSA registration (Form MCS-150) on April 8, 2026.
  • It reported 93,568 vehicle miles traveled in 2025.
  • One insurance filing is on file in FMCSA’s legacy licensing records (as of May 2026), including Liability (BIPD) coverage with Professional Transportation Rrg Inc.
  • It had 2 roadside inspections in the last 24 months; 0 inspections recorded no violations.
  • Its process agent filing (BOC-3) is with Process Agent Service Company, Inc..

Other carriers in Ontario, CA

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