Koser Busing
Legal name: Tammy M Koser
Koser Busing's DOT number is USDOT 1539591.
Looks good
No issues found
Based in
Cogan Station, PA
Power units
15
Drivers
22
Operation
Intrastate
Watch Koser Busing for free
Next MCS-150 due: Jan 31, 2027
We'll email a reminder before it's due, and the same day this carrier's operating status, authority, safety rating or roadside inspections change.
Compliance check
From the FMCSA census and inspection files, checked Oct 21, 2026.
USDOT number status
OKActive in the FMCSA census.
MCS-150 biennial update
OKNext due Jan 31, 2027. Last filed Feb 24, 2026.
Safety rating
InfoNot rated. Most carriers are unrated until a compliance review.
Out-of-service rate (24 months)
OKVehicle 0% vs 22.26% national, driver 0% vs 6.67% national, across 38 inspections.
Roadside inspections, last 24 months
| Type | Inspections | Out of service | OOS rate | National avg |
|---|---|---|---|---|
| Vehicle | 38 | 0 | 0% | 22.26% |
| Driver | 38 | 0 | 0% | 6.67% |
38 inspections and 0 violations since Oct 21, 2024. Last inspection May 21, 2026. National averages are FMCSA-published approximations.
Registration details
- Legal name
- Tammy M Koser
- DBA
- Koser Busing
- Classification
- private property
- CDL drivers
- 22
- MCS-150 last filed
- Feb 24, 2026
- Reported mileage
- 170,000 (2024)
- Added to FMCSA
- Aug 8, 2006
- Safety rating
- Not rated
Source: FMCSA Motor Carrier Census and Vehicle Inspection File (data.transportation.gov), public records. Contact details are intentionally not shown. MyDotCheck is an independent service and is not affiliated with, endorsed by, or part of the U.S. Department of Transportation or FMCSA. Data comes from public FMCSA datasets and may lag official records by a day or more. Government filings can be made directly with FMCSA at no charge.