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Truck Graph
15/100
✗ Do Not Tender
No active for-hire authority. Cannot legally haul freight for hire.
Schaefer Engineering INC
DOT 4247766 · Santa Rosa, CA
Report generated: June 2, 2026 at 12:37 PM
✗Authorized for hire?
✗Active insurance?
✗Safety record clean?
✓No fraud flags?
✓No prior revocations?
Carrier Summary

Schaefer Engineering INC (DOT 4247766) is a California-based intrastate carrier headquartered in Santa Rosa, CA. As of June 2, 2026 at 12:37 PM, operating authority is active but without for-hire authority. TruckGraph has detected 2 risk signals on this carrier, including: driver qualification violation on record; no active insurance filing on record. TruckGraph rates this carrier "Do Not Tender" based on FMCSA compliance data, inspection history, insurance status, and network connection analysis. Last synced: June 2, 2026 at 12:37 PM.

FMCSA Public Record
Schaefer Engineering INC
DOT Number4247766
MC Number—
Street4521 LANGNER AVE
City / StateSanta Rosa, CA 95407-8304
Phone7078491975
Operation typeIntrastate
HazmatNot authorized
Authority age2 yr
MCS-150 filed01/28/2026
Company officerJohn Schaefer
Power units2
Total drivers3
Authority Status
Common (for-hire)—
Contract (for-hire)—
Broker—
TruckGraph Intelligence
Risk Signals
●Driver qualification violation on record
●No active insurance filing on record
✓ OFAC Sanctions: Clear
Connection Chain
DOT nullShared insurer
Revoked
OOS rate 100.0% vs. national avg 22.26% — above average
Network Intelligence Map
Carriers sharing an officer, address, or phone with Schaefer Engineering INC
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Power Units
2
Fleet
Drivers
3
Total
Inspections
1
On record
Crashes
0
On record
OOS Rate
100.0%
↑ Avg 22.26%
Authority Age
2 yr
Since 2024
Violation Categories — Last 24 Months
Hours of Service
1 insp (100%)
Unsafe Driving
1 insp (100%)
Driver Fitness
1 insp (100%)· 1 viol
Vehicle Maintenance
1 insp (100%)· 1 viol
Controlled Substances
1 insp (100%)
Inspection History
1 total · OOS rate 100.0%
DateStateLevelDriver OOSVehicle OOSResult
1/27/2026CAII11OOS
Crash History
0 total on record

No crash records on file.

Insurance Status
⚠ No active insurance filing on record
Verify insurance directly with carrier before tendering any load.
Location
4521 LANGNER AVE, Santa Rosa, CA, 95407-8304 · Open in Maps →
4521 LANGNER AVE, SANTA ROSA, CA, 95407-8304Open in Maps →
Authority Timeline
Authority GrantedMay 2024
FMCSA issued operating authority
Active USDOT — No for-hire authorityCurrent
USDOT record is active but no for-hire operating authority is currently granted

Source: FMCSA compliance records, inspection data, crash records, insurance filings, and TruckGraph analysis. View methodology

Important Legal Notice

Data sourced from FMCSA public records and TruckGraph independent analysis. This is not legal advice, not a guarantee of carrier safety, and not a compliance certification. Verify through official FMCSA sources before tendering. Last synced: .

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Frequently Asked Questions

Is Schaefer Engineering INC authorized to operate?

Schaefer Engineering INC's USDOT number is active but it does not hold operating authority for for-hire interstate operations. It may operate as a private carrier. Verify status before tendering.

What is Schaefer Engineering INC's safety record?

Schaefer Engineering INC has 1 roadside inspections on record with an out-of-service rate of 100.0%. Crash history shows 0 incidents. Review the full safety profile above before making a freight decision.

How many trucks does Schaefer Engineering INC operate?

Schaefer Engineering INC operates 2 power units with approximately 3 drivers.

Is Schaefer Engineering INC insured?

Insurance filing details are not available in the current dataset. Verify directly with the carrier before tendering.

Has Schaefer Engineering INC had any risk indicators?

Schaefer Engineering INC has a risk score of 15/100 (Monitor) with 2 active risk signals. Review the risk section above and verify independently before tendering.

What is the DOT number for Schaefer Engineering INC?

Schaefer Engineering INC's DOT number is 4247766. These identifiers are assigned by the FMCSA and can be used to look up this carrier in official compliance databases.

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Truck Graph data is open and citable. For press inquiries, contact our editorial team.

APA
Truck Graph. (2026). Schaefer Engineering INC Safety Record, DOT 4247766. Retrieved from https://truckgraph.com/carriers/4247766
MLA
"Schaefer Engineering INC Safety Record, DOT 4247766." Truck Graph, Jun 2, 2026, https://truckgraph.com/carriers/4247766
Chicago
"Schaefer Engineering INC Safety Record, DOT 4247766." Truck Graph. Last modified June 2, 2026. https://truckgraph.com/carriers/4247766