DIAMOND COACH SERVICES
AUTHORIZEDDBA: DIAMOND TRANSPORTATION
USDOT
2547013
MC Number
886766
Fleet Size
10
Total Drivers
10
Last updated: March 16, 2026
Safety overview
DIAMOND COACH SERVICES is a small interstate motor carrier based in TUCSON, Arizona, operating 10 power units with 10 drivers. All 5 BASIC scores sit well below FMCSA intervention thresholds, which is a good sign for anyone vetting this carrier. No crashes on file. FMCSA records show 5 inspections for this carrier.
BASIC scores
SMS PercentilesHigher percentile = worse performance relative to peers. Scores at or above 75% may trigger an FMCSA investigation.
Out-of-service rates vs. national average
An out-of-service order means the driver or vehicle was pulled from operation during a roadside inspection.
For reference, the average driver OOS rate in Arizona is 12.5% and the average vehicle OOS rate is 26.7% across 29,313 carriers.
Company details
- Entity Type
- N/A
- Carrier Operation
- Interstate
- Operation Classification
- Authorized For Hire
- Cargo Carried
- N
- Hazmat
- No
- Safety Rating Date
- N/A
What are BASIC scores?
FMCSA tracks carrier performance through its Safety Measurement System (SMS), which scores carriers across six categories called BASICs. Each score is a percentile from 0 to 100, based on inspection and crash data from the past 24 months.
A score of 65 means the carrier performed worse than 65% of its peers. Anything above 75% can trigger FMCSA alerts or investigations. Brokers vetting new carriers should pay attention to scores above 50%.
- Unsafe driving
- Speeding, reckless driving, improper lane changes, seatbelt violations. All based on what officers find during roadside inspections.
- HOS / Fatigue
- Hours-of-service violations, logbook problems, driving past the allowed limits. Fatigued driving is one of the top causes of truck crashes in the US.
- Driver fitness
- Licensing problems, expired medical certificates, and other driver qualification issues.
- Controlled substances
- Drug and alcohol testing violations, possession, or impairment.
- Vehicle maintenance
- Brake problems, tire issues, lighting defects, load securement failures. Caught during the vehicle portion of roadside inspections.
- Crash indicator
- Based on crash history from state-reported data. Higher percentile means more crashes relative to the carrier's size and mileage.
Inspections
5
Total
0%
Driver %
Crash history
0
Total Crashes
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Frequently asked questions
Is DIAMOND COACH SERVICES authorized to operate?
Yes. DIAMOND COACH SERVICES (USDOT #2547013) currently holds "AUTHORIZED" status with FMCSA. They're registered as an interstate carrier.
What is DIAMOND COACH SERVICES's safety record?
Based on FMCSA data, DIAMOND COACH SERVICES has no BASIC scores above the 75th percentile intervention threshold. They haven't received a formal FMCSA safety rating. No crashes on record.
How many trucks does DIAMOND COACH SERVICES operate?
DIAMOND COACH SERVICES operates 10 power units with 10 drivers on file. That makes them a small carrier.
Does DIAMOND COACH SERVICES transport hazardous materials?
No. DIAMOND COACH SERVICES does not have a hazardous materials flag in the FMCSA database.
Where is DIAMOND COACH SERVICES located?
DIAMOND COACH SERVICES is based in TUCSON, Arizona at 6885 N ORACLE RD STE F, 85704. Phone: (520) 825-8888.
What are DIAMOND COACH SERVICES's out-of-service rates?
Their vehicle out-of-service rate is 20.0% (national average: 20.72%).