Carrierintel Safety Score: 78/100. 27 inspection violations in 12 months. Last inspected Oct 2026.
DOT 491637MC 240905ActiveMotor CarrierInterstateGeneral Star Indemnity Company +2 · $5,005,000 · 3 policiesPHOENIX, AZ
COMPANY
Authority since
2023-05-15
MCS-150
2026-01-14 · 6,043,936 mi (2025)
Fleet
76 units · — trailers · 81 drivers
Annual mileage (VMT)
6,043,936 mi (2025)
ADDRESS
Physical
5701 W VAN BUREN ST PHOENIX, AZ 85043
Mailing
Same as physical
CONTACT
Phone
6022787399
Email
pjmiller@diamondtrucking.net
OFFICERS
Primary Officer
JESS MILLER
Title
PRESIDENT
OPERATION & CARGO
Operation classification
Authorized For Hire
Specialty
Tanker / Bulk Liquids
Cargo types
7
General FreightBuilding MaterialsLiquids / GasesChemicalsCommodities Dry BulkConstructionOther: MOTOR FUELS
Self-reported by the company on its latest MCS-150 filing (FMCSA census). Reflects what the carrier is authorized and equipped to haul, not actual recent loads. Specialty is our summary of the declared cargo mix.
AUTHORITY
415 mo
Active authority
INSURANCE
3 active
General Star Indemnity Company
RISK GRADE
Minimal Risk
0 risk factors · 6 strengths
OOS RATE
1.2%
3 / 249 inspections
Carrierintel Safety Score
Rolling 12-month heuristic based on inspections, OOS, violations, crashes & fatalities. Not the official FMCSA SMS score.
78
out of 100
Good
Markers: OOS inspection Crash Fatality
Fleet vs Reality
last 12 months · power-unit VINs from roadside inspections