Carrier profile · USDOT 991591 · Updated Jun 13, 2026

WILLIAM A DIETZ

DBA DIETZ BROTHERS

3 power unitsGLEN ARM, MD50/100
AUTHORITY STATUS UNKNOWN
Verified linksFMCSA SAFER

Operations & Lanes

Where this carrier actually runs, revealed by roadside-inspection geography over the last 24 months — not where they claim to operate, shown as state-level inspection density.

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base
GLEN ARM, MD
5728 GLEN ARM RD
Density
fewermore
Shade = roadside inspections, last 24 mo.