SLACK JOHN L
AUTHORIZEDDBA: JOHN SLACK TRUCKING
USDOT
3435430
MC Number
N/A
Fleet Size
1
Total Drivers
1
Last updated: March 16, 2026
Safety overview
SLACK JOHN L is a small intrastate only (non-hazmat) motor carrier based in POTTER 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
- Exempt 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 SLACK JOHN L authorized to operate?
Yes. SLACK JOHN L (USDOT #3435430) currently holds "AUTHORIZED" status with FMCSA. They're registered as an intrastate only (non-hazmat) carrier.
How many trucks does SLACK JOHN L operate?
SLACK JOHN L operates 1 power unit with 1 driver on file. That makes them a small carrier.
Does SLACK JOHN L transport hazardous materials?
No. SLACK JOHN L does not have a hazardous materials flag in the FMCSA database.
Where is SLACK JOHN L located?
SLACK JOHN L is based in POTTER VALLEY, California at 10100 EAST RD, 95469. Phone: (530) 282-8396.