FMCSA Clearinghouse Compliance for Employers

NMS Screening & Compliance provides structured FMCSA Clearinghouse compliance support to help motor carriers and owner-operators meet query and reporting requirements accurately, reduce administrative burden on Designated Employer Representatives, and remain audit-ready.

What Is the FMCSA Clearinghouse?

The FMCSA Drug and Alcohol Clearinghouse is a federally mandated, secure online database that records violations of the U.S. Department of Transportation's drug and alcohol testing program by commercial driver's license (CDL) and commercial learner's permit (CLP) holders. Established under 49 CFR Part 382 and operated by the Federal Motor Carrier Safety Administration, it gives motor carriers a single authoritative source for confirming whether a driver is eligible to perform safety-sensitive functions.

The Clearinghouse rule was published December 5, 2016, and took effect January 6, 2020. It does not replace an employer's drug and alcohol testing program — it is a required verification and reporting layer on top of it.

FMCSA Clearinghouse Requirements for Motor Carriers

The FMCSA Clearinghouse rule establishes a centralized system for reporting and reviewing specific drug and alcohol program violations for CDL drivers. The Clearinghouse contains records of violations of the DOT controlled substances and alcohol testing regulations, as defined in 49 CFR Part 382 and 49 CFR Part 40.

Employers are required to use the Clearinghouse to:

• Conduct required pre-employment and annual driver queries.
• Verify that drivers are not prohibited from performing safety-sensitive functions.
• Ensure that reported violations are resolved before a driver returns to duty.

The Clearinghouse does not replace an employer’s drug and alcohol testing program. It is a required verification and reporting component of FMCSA compliance.

FMCSA Clearinghouse Compliance Support for Employers

NMS Screening & Compliance assists FMCSA-regulated employers by providing structured support for Clearinghouse requirements, while ensuring employers retain appropriate oversight and responsibility.

Our Clearinghouse compliance support includes:

• Assistance with Clearinghouse registration and account setup.
• Support with required driver queries (pre-employment and annual).
• Guidance on violation reporting responsibilities.
• Coordination with Medical Review Officers (MROs) and Substance Abuse Professionals (SAPs), as applicable.
• Ongoing compliance support to help employers remain audit-ready.

Who Is Required to Use the FMCSA Clearinghouse?

CDL Drivers

CDL drivers are required to:

• Register in the Clearinghouse.
• Provide electronic consent for employer queries.
• Select a Substance Abuse Professional (SAP) following a violation, if applicable.
• Complete the return-to-duty process when required.

Employers

FMCSA-regulated employers must:

• Conduct required Clearinghouse queries before hiring a driver and annually thereafter.
• Ensure no driver performs safety-sensitive functions with an unresolved violation.
• Designate authorized representatives or C/TPAs, if applicable.
• Maintain compliance with reporting and recordkeeping requirements.

Consortium/Third-Party Administrators (C/TPAs)

Authorized C/TPAs may:

• Perform Clearinghouse queries on behalf of employers.
• Report violations when permitted by regulation.
• Provide administrative support under employer authorization.

Medical Review Officers (MROs)

MROs are responsible for reporting:

• Verified positive drug test results.
• Refusals to test.
• Certain cancelled tests, as required under DOT regulations.

Substance Abuse Professionals (SAPs)

SAPs are responsible for reporting:

• Initial evaluations.
• Completion of education and treatment.
• Eligibility determinations for return-to-duty testing.

State Driver Licensing Agencies (SDLAs)

SDLAs are required to query the Clearinghouse prior to completing certain CDL licensing actions to verify driver eligibility.

FMCSA Clearinghouse Queries: Pre-Employment vs. Annual

Employers must conduct two distinct types of Clearinghouse query, and the requirements differ.

Pre-employment queries must be full queries, conducted before a driver first performs a safety-sensitive function. A full query releases the driver's Clearinghouse information to the employer and requires the driver's specific consent.

Annual queries must be conducted at least once per year for every driver subject to controlled substance and alcohol testing. In place of a full query, an employer may obtain the driver's consent to conduct a limited query, which tells the employer only whether information exists on the driver's record without releasing it. Consent for limited queries can be effective for more than one year.

If a limited query shows that information exists, the employer must conduct a full query within 24 hours. If they do not, the driver must be removed from all safety-sensitive functions until the full query is completed and confirms no prohibitions.

Source: 49 CFR § 382.701 — Drug and Alcohol Clearinghouse.
Verified July 2026.

Clearinghouse Recordkeeping

Employers must retain a record of each query and all information received in response for three years. Since January 6, 2023, maintaining a valid Clearinghouse registration satisfies this recordkeeping requirement.

30-Day Employer Notification

If a violation is entered into the Clearinghouse about a driver during the 30 days immediately following an employer's query of that driver's record, FMCSA will notify the employer directly.

Consequences of Noncompliance with FMCSA Clearinghouse Requirements

Employers subject to FMCSA Clearinghouse requirements must comply with reporting and query obligations in accordance with 49 CFR Part 382. Failure to conduct required queries or ensure that drivers with unresolved violations are prohibited from performing safety-sensitive functions may result in FMCSA enforcement actions, including notices of violation and civil penalties assessed on a per-violation basis.

NMS OnBoard™: Centralized FMCSA Clearinghouse Management

NMS Screening & Compliance supports FMCSA Clearinghouse requirements through NMS OnBoard™, a secure, cloud-based, mobile-enabled platform that centralizes Clearinghouse-related coordination and documentation. NMS OnBoard™ provides employers and Designated Employer Representatives (DERs) with visibility into Clearinghouse queries, consent status, violation reporting activity, and record retention. By consolidating Clearinghouse workflows alongside drug and alcohol testing activity, NMS OnBoard™ helps motor carriers manage Clearinghouse obligations efficiently while maintaining clear oversight and audit readiness.

Why Choose NMS Screening & Compliance?

• Regulatory Expertise: Deep experience supporting FMCSA-regulated employers and Clearinghouse compliance requirements.
• Structured, Low-Risk Support: Administrative assistance without over-delegation or employer liability exposure.
• Reduced Administrative Burden: Streamlined processes supporting employers and Designated Employer Representatives (DERs).
• Integrated DOT Compliance Services: Alignment with DOT drug and alcohol testing, consortium management, and audit support.
• Audit-Ready Processes: Documentation and workflows aligned with federal regulations.
• Nationwide Coverage: Support for employers operating across multiple states.