FMCSA Drug & Alcohol Clearinghouse — 49 CFR 382.701-727
The Clearinghouse is FMCSA's federal database of CDL driver drug & alcohol violations. Mandatory effective Jan 6, 2020. All testing violations must be reported; all employers must query.
Two query types
| Query | Required When | Consent | Cost |
|---|---|---|---|
| Pre-Employment Full Query | Before hiring/contracting any CDL driver | Driver-specific electronic consent | $1.25 |
| Annual Limited Query | At least once every 12 months for every active CDL driver | One-time blanket consent at hire | $1.25 |
Limited query returns "yes/no" — does this driver have any Clearinghouse records? If yes, you must then conduct a Full Query (with separate consent) within 24 hours to see details.
Full query returns: every violation, refusal, RTD status, follow-up status.
Reportable violations (49 CFR 382.705)
Employers, MROs, SAPs, and state licensing agencies report:
- Verified positive drug test (employer + MRO each report)
- Verified positive alcohol test (≥ 0.04)
- Test refusal (any of the 9 refusal reasons under 49 CFR 40.191)
- Actual knowledge violation (saw the driver drinking on duty, etc.)
- RTD test results
- SAP "successful completion" reports
- Follow-up test results
Reporting deadline: 3 business days for most violations.
Driver "prohibited" status
A driver is "prohibited" from operating a CMV in safety-sensitive functions when they have:
- Any violation that hasn't been resolved through SAP + RTD test, OR
- A positive pre-employment test (until SAP completion)
A "prohibited" driver appears as such in Clearinghouse queries. They cannot be hired, retained in CDL function, or re-instated until they complete SAP + RTD.
How to register & use the portal
For employers:
- Go to
clearinghouse.fmcsa.dot.gov - Create an account with FMCSA Portal credentials (or USDOT-tied login)
- Establish your designated Consortium/Third-Party Administrator (C/TPA) if applicable
- Purchase query credits (or buy a "Query Plan" annual subscription)
- Use the portal to query individual drivers OR batch upload a CSV of drivers for annual limited queries
Consent forms
The Clearinghouse-mandated consent forms are:
- Full Query Consent (electronic, driver-signed in the Clearinghouse portal) — required for each Full Query
- Limited Query Consent (paper, blanket, one-time) — required to perform Limited Queries on this driver for the duration of employment
Critical: The Limited Query Consent does NOT cover Full Queries. You must obtain separate Full Query consent for the pre-employment query.
C/TPA (Consortium / Third-Party Administrator)
Smaller carriers often designate a C/TPA (e.g., DISA, US HealthWorks, or any DOT-compliant TPA) to handle:
- Random selection pool management
- Clearinghouse queries on the carrier's behalf
- Test result tracking
- MRO interface
The C/TPA is granted Clearinghouse access via the employer's designation. Cost is typically a per-driver-per-month subscription.
Query credit math
Query credits are pre-purchased. As of 2026:
- Single query: $1.25
- Annual unlimited query plans: not currently offered (you pay per query)
- Bulk discounts: minor (~$1.00 each at 1000+ credits)
For a 25-driver carrier:
- 25 × $1.25 pre-employment full queries (if all new hires) = $31
- 25 × $1.25 annual limited queries = $31
- Plus any post-violation follow-up queries
- ~$60-75/year for a stable fleet
The "prohibited driver" workflow
A driver shows up as prohibited in your query. Now what?
- Remove from safety-sensitive function immediately (and document).
- Provide the driver with a list of qualified SAPs.
- The driver completes SAP evaluation + treatment + re-evaluation.
- Driver passes a RTD test (drug and/or alcohol, observed).
- SAP submits the "successful completion" to Clearinghouse.
- Driver's status changes to "not prohibited" in Clearinghouse.
- Driver can be returned to CMV duty.
- Follow-up tests continue for 1-5 years per SAP schedule.
If a prohibited driver tries to operate, they violate 382.501; the carrier violates 382.215.
Common Clearinghouse mistakes
- Pre-employment query was Limited instead of Full — common when carriers default to "Limited because it's cheaper." Limited returns yes/no only and may not satisfy pre-employment requirements.
- Annual Limited query missed for an active driver — must be performed at least once every 12 months from the prior query.
- Failed to obtain Limited Query Consent at hire — a Limited query without consent is a violation.
- Carrier doesn't report a verified positive within 3 days — separate from MRO reporting; both must report.
- Carrier hires a driver showing "prohibited" without remediation — violation under 382.703 + 382.219.
State licensing agency interface
As of 2024 amendments, state CDL licensing agencies (DMVs) also query the Clearinghouse and downgrade a CDL to a non-commercial license when the driver is prohibited. This is the "downgrade" provision and can happen without warning to a driver who hasn't resolved a Clearinghouse violation.
Where this fits in X3
X3 includes Clearinghouse query workflow in dq-files.html and surfaces "Clearinghouse status" on the driver record. vendor_orders can carry vendor='clearinghouse' orders for either Limited or Full query types. Once the FMCSA opens an API for employer queries (currently web-only), X3 will automate this.
Built by X3 Compass
The AI-powered DOT compliance platform for fleets 1–100 power units. Try a 7-day free trial — no credit card required — at https://x3compass.com/?utm_source=skill&utm_medium=github&utm_campaign=fmcsa-clearinghouse-workflow
X3 Compass turns these skills into a complete operational platform: driver qualification files, drug & alcohol consortium, MVR pulls, hours-of-service tracking, hazmat shipping, IFTA filing, FMCSA audit prep, and DataQ dispute drafting — all CFR-cited, all in one place.
This skill is published under the X3 Compass open skills initiative. Contributions welcome at https://github.com/x3fleetsafety/skills