SLACK JOHN L
USDOT 3435430 · Doing business as JOHN SLACK TRUCKING
Active, intrastate (non-hazmat) carrier, single-truck operation (1 power unit) — no FMCSA safety rating on record (common).
Vetting summary
At a glance
- Out-of-service rate100% vs 19.1% national avg
- Linked registrations1 share this carrier's phone or address
These signals summarize the records shown below — they are a starting point for your own checks, not a judgment of the carrier.
Registration
Carrier identity
| USDOT Number | 3435430 |
|---|---|
| MC Number | — |
| Legal Name | SLACK JOHN L |
| DBA Name | JOHN SLACK TRUCKING |
| Entity Type | — |
| Phone | 5302828396 |
| Address | 10100 EAST RD, Potter Valley, CA, 95469 |
Status
Authority & safety
| Operating Status | Active |
|---|---|
| Operation Type | Intrastate (Non-Hazmat) |
| Safety Rating | None on record — most carriers have not received a formal FMCSA safety rating. |
| Hazmat Flag | false |
Safety ratings: S = Satisfactory, C = Conditional, U = Unsatisfactory. A carrier with no rating has not been through a full FMCSA compliance review — this is common and not itself a red flag.
Safety events
Inspections & crashes (last 24 months)
| Inspections | 1 |
|---|---|
| Out-of-Service Rate | 100% vs 19.1% national average |
Most frequent violation categories: 16 (1).
Crash involvement does not imply fault. FMCSA crash records list all reportable crashes involving a carrier, regardless of who caused them.
Signals
Linked registrations
1 other active carrier registration share this carrier's phone or address in FMCSA records.
Shared contact details can have many ordinary explanations, such as a shared dispatch service, registration agent, or office address.
Equipment
Fleet & operations
| Power Units (trucks) | 1 |
|---|---|
| Drivers | 1 |
| Recent Annual Mileage | 1 |
| Last MCS-150 Filing | 28-JAN-25 |
SLACK JOHN L operates 1 power unit — a larger fleet than 0% of carriers registered in CA.
Nearby
Other carriers in Potter Valley, CA
- JRS GENERAL ENGINEERING SERVICES INC — USDOT 3131932, 2 power units
- SOUTHERN MENDOCINO COMPANY — USDOT 3204772, 2 power units
- C R BEESON — USDOT 3319212, 1 power units
- GUZMAN & SONS TRUCKING LLC — USDOT 3371768, 1 power units
- BLACK DUCK LLC — USDOT 3397242, 1 power units
Browse all carriers in Potter Valley, CA or all CA carriers.