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DIAMOND PLUS TRANSPORTATION INC

USDOT 2574313 · MC900164 · Walnut, CA

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DIAMOND PLUS TRANSPORTATION INC

USDOT 2574313 · MC900164 · Walnut, CA  ·  Underwriter-grade risk snapshot

Operating statusActive
Lead priorityLater
Fleet14 power units · 14 drivers (14 trucks)
OperationA · AUTHORIZED FOR HIRE
Current insurerSPINNAKER SPECIALTY INSURANCE COMPANY
Crashes / Inspections (24 mo)0 / 65

Out-of-Service Rates

VehicleDriver
This carrier 26.2% (17/65) 9.2% (6/65)
National average22.3%6.7%

⚠️ Above national average. Carriers with high OOS rates face premium surcharges and are more likely to shop for new insurance.

Contact

Address20510 BIND COURT
WALNUT CA 91789
Phone🔒 Subscribe to reveal
Email🔒 Subscribe to reveal

Fleet & mileage

Power units14
Drivers14 (14 CDL)
MCS-150 mileage1,866,508 (2025)
MCS-150 filedJan 30, 2026
HazmatN
Cargogeneral freight

Active insurance filings

DocketFormInsurerPolicy #EffectiveCancelledMax coverage
MC90016491XSPINNAKER SPECIALTY INSURANCE COMPANY Hidden - subscribe to viewJan 30, 2026— 750

Insurance history

InsurerPolicy #EffectiveCancelled
SOUTHLAKE SPECIALTY INSURANCE COMPANYHidden Jan 30, 2025Jan 30, 2026
SOUTHLAKE SPECIALTY INSURANCE COMPANYHidden Jan 30, 2024Jan 30, 2025
SOUTHLAKE SPECIALTY INSURANCE COMPANYHidden Jan 30, 2023Jan 30, 2024
UNITED SPECIALTY INSURANCE COMPANYHidden Jan 30, 2022Jan 30, 2023
UNITED SPECIALTY INSURANCE COMPANYHidden Jan 30, 2021Jan 30, 2022
UNITED SPECIALTY INSURANCE COMPANYHidden Jan 30, 2020Jan 30, 2021
UNITED SPECIALTY INSURANCE COMPANYHidden Jan 30, 2019Jan 30, 2020
UNITED SPECIALTY INSURANCE COMPANYHidden Jan 30, 2018Jan 30, 2019

Operating authority

DocketStatusPending
MC900164 Common None
Contract Active
Broker None		 —

Inspections & violations

Total inspections65
Out-of-service33
Vehicle OOS rate41.5%
Driver OOS rate9.2%
Total violations89
OOS violations0

Crashes

Total crashes0
Fatal crashes0
Injuries0

Safety measurement (BASIC)

CategoryMeasureStatus
Unsafe Driving1.11OK
Hours of Service0.84OK
Driver Fitness0.15OK
Controlled Substances0.07OK
Vehicle Maintenance6.02OK
Insurance agent? DIAMOND PLUS TRANSPORTATION INC renews Jan 30, 2027 — get the full CA lead list.

Data as of Thu Oct 15 2026 00:00:00 GMT+0000 (Coordinated Universal Time). Source: FMCSA public filings, refreshed daily by Insight Carrier.

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