DBA: Circle Z
Zachary M Rosburg is an active interstate carrier based in Charter Oak, IA.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 1 | 0 | 0 |
| Tractors | 1 | 0 | 0 |
| Total Power Units | 1 | ||
Distinct vehicles · 24 mo
vs 1 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category | Insp w/ Viol |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 0% | 0% | Better than most peers |
| HOS Compliance | 0% | 0% | Better than most peers |
| Driver Fitness | 0% | 0% | Better than most peers |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 93% | 86% | Worse than most peers |
Lower percentile = lower SMS measure = stronger safety record. Computed nightly across active carriers in the same state and fleet-size band.
| Type | Inspections | OOS | OOS % | Nat'l Avg |
|---|---|---|---|---|
| Driver | 0 | 0 | — | 6.67% |
| Vehicle | 0 | 0 | — | 22.26% |
| Hazmat | 0 | 0 | — | 4.44% |
Where they run
Inspected in 3 states. Top state IA accounts for 33% of activity. Activity outside home state (IA): 67%.
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| No crashes recorded | 0 | 0 | 0 | 0 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 3 | 0 | 0 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Aug 5, 2025 | IA | TRUCK TRACTOR | 0 | 0 |
| Aug 21, 2024 | OK | TRUCK TRACTOR | 0 | 0 |
| Aug 20, 2024 | KS | TRUCK TRACTOR | 3 | 0 |
| Date | Code | Description |
|---|
Carriers that share an officer, phone, or email with this DOT.
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 0 | 0.00 | — |
| HOS Compliance | 0 | 0.00 | — |
| Vehicle Maintenance | 2 | 5.00 | — |
| Driver Fitness | 0 | 0.00 | — |
| Controlled Substances | 0 | 0.00 | — |
| BASIC |
|---|
| OOS |
|---|
| Aug 20, 2024 | 39345B2 | Brake hose or tubing chafing and/or kinking | Vehicle Maintenance | — |
| Aug 20, 2024 | 39383G | Exhaust - Discharging at a point forward or directly below the driver or sleeper compartment | Vehicle Maintenance | — |
| Aug 20, 2024 | 39395A | No/discharged/unsecured fire extinguisher | Vehicle Maintenance | — |