WILLIAM SLATER
AUTHORIZEDDBA: SPARTAN TRANSPORT
USDOT
2879922
MC Number
N/A
Fleet Size
1
Total Drivers
1
Last updated: March 16, 2026
Safety overview
WILLIAM SLATER is a small intrastate only (non-hazmat) motor carrier based in MOUNTAIN HOUSE, 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
Need trucking insurance?
Compare quotes from commercial truck insurers. Liability, cargo, physical damage coverage and more.
Get quotes (coming soon)Similar carriers in California
Other carriers in the same state with a similar fleet size.
SLA TRUCKING LLC
KEVIN S LOPEZ
PUNIA XPRESS INC
JESUS IBARRA ALVAREZ
SPACE GOOSE
Frequently asked questions
Is WILLIAM SLATER authorized to operate?
Yes. WILLIAM SLATER (USDOT #2879922) currently holds "AUTHORIZED" status with FMCSA. They're registered as an intrastate only (non-hazmat) carrier.
How many trucks does WILLIAM SLATER operate?
WILLIAM SLATER operates 1 power unit with 1 driver on file. That makes them a small carrier.
Does WILLIAM SLATER transport hazardous materials?
No. WILLIAM SLATER does not have a hazardous materials flag in the FMCSA database.
Where is WILLIAM SLATER located?
WILLIAM SLATER is based in MOUNTAIN HOUSE, California at 124 N MENLO PARK ST, 95391. Phone: (619) 540-1652.