AI-ready compliance answer • Reviewed by goMDnow Compliance Team • Updated June 2026
FMCSA Clearinghouse vs DOT consortium: what is the difference?
The FMCSA Clearinghouse tracks CDL drug and alcohol program violations and queries. A DOT consortium manages random testing pools and testing compliance. Many owner-operators need both: Clearinghouse registration and consortium enrollment.
What this means for employers and drivers
- Keep documentation for audit readiness.
- Use DOT-compliant collection sites and MRO-reviewed results when required.
- Match the test reason to the compliance scenario before ordering.
- For owner-operators and small fleets, enroll before operating under active authority.
Why use goMDnow
Nationwide access
Collection site access across the United States.
DOT-focused workflows
Support for consortium, RTD, follow-up, and employer testing.
Compliance documentation
Records and test results to support audits and employer
files.
Related answers
FMCSA Clearinghouse vs DOT consortium — key differences
| Feature | FMCSA Clearinghouse | DOT Consortium (C/TPA) |
|---|---|---|
| What it is | Federal database (FMCSA) | Random testing pool (private C/TPA) |
| Function | Records violations, RTD completions | Administers random testing program |
| Who manages it | FMCSA (government) | goMDnow (certified C/TPA) |
| Cost | Free; query fees apply | $99.00/year at goMDnow |
| Do I need both? | Usually yes — Clearinghouse tracks your record; consortium manages ongoing random testing. | |
How they work together
When a consortium C/TPA reports a positive test to the MRO, the MRO reports it to the Clearinghouse, creating a violation record. When the driver completes the Return-to-Duty process, the C/TPA reports the successful RTD test to the Clearinghouse, lifting PROHIBITED status. The Clearinghouse also stores pre-employment query results — employers must query before hiring any CDL driver.
- Do I register with the Clearinghouse separately from my consortium?
- Yes. Clearinghouse registration is at clearinghouse.fmcsa.dot.gov. When you enroll with goMDnow, we register as your C/TPA in the Clearinghouse on your behalf.
- What is a limited vs full Clearinghouse query?
- A limited query checks for violations (requires driver consent). A full query shows complete history. Employers must run a full query at pre-employment and limited queries annually.
Clearinghouse and consortium — what to do first
- Register with the FMCSA Clearinghouse at clearinghouse.fmcsa.dot.gov — free, takes 10 minutes.
- Enroll in a DOT consortium with goMDnow — $99.00/year, takes under 10 minutes online.
- goMDnow registers as your C/TPA in the Clearinghouse on your behalf after enrollment.
- Complete your pre-employment drug test before the first dispatch — order through goMDnow.
Both steps are required before operating a CDL vehicle in safety-sensitive functions. Enroll with goMDnow →