MARY F DEFFEBACH
AUTHORIZEDUSDOT
2690762
MC Number
N/A
Fleet Size
1
Total Drivers
1
Last updated: March 11, 2026
Safety overview
MARY F DEFFEBACH is a small intrastate only (non-hazmat) motor carrier based in CASTRO VALLEY, California, operating 1 power unit with 1 drivers. FMCSA hasn't published BASIC scores for this carrier yet. That usually means they don't have enough inspection data for the system to calculate percentiles. No crashes on file.
BASIC scores
SMS PercentilesHigher percentile = worse performance relative to peers. Scores at or above 75% may trigger an FMCSA investigation.
No BASIC scores available. This usually means the carrier hasn't had enough inspections for FMCSA to calculate percentiles.
Company details
- Entity Type
- N/A
- Carrier Operation
- Intrastate Only (Non-Hazmat)
- Operation Classification
- Authorized For Hire
- Cargo Carried
- N
- Hazmat
- No
- Safety Rating Date
- N/A
Inspections
0
Total
—
Driver %
Crash history
0
Total Crashes
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Frequently asked questions
Is MARY F DEFFEBACH authorized to operate?
Yes. MARY F DEFFEBACH (USDOT #2690762) currently holds "AUTHORIZED" status with FMCSA. They're registered as an intrastate only (non-hazmat) carrier.
How many trucks does MARY F DEFFEBACH operate?
MARY F DEFFEBACH operates 1 power unit with 1 driver on file. That makes them a small carrier.
Does MARY F DEFFEBACH transport hazardous materials?
No. MARY F DEFFEBACH does not have a hazardous materials flag in the FMCSA database.
Where is MARY F DEFFEBACH located?
MARY F DEFFEBACH is based in CASTRO VALLEY, California at 18886 WALNUT RD, 94546. Phone: (510) 828-1089.