Final Rule · FR 2021-21928

Controlled Substances and Alcohol Testing: State Driver's Licensing Agency Non-Issuance/Downgrade of Commercial Driver's License

Published Oct 7, 2021 at 86 FR 55718. A plain-English summary, key dates and a link to the official text.

Data as of: Oct 16, 2026 5:00 PM PDT

02 / In plain English · Drug & alcohol

What this rule does.

Known as “Clearinghouse II.” State licensing agencies must check the Drug and Alcohol Clearinghouse and may not issue, renew, upgrade or transfer a CDL or CLP for a driver who is prohibited because of a drug or alcohol violation. They must also remove the CDL or CLP privilege, downgrading the license until the driver completes return-to-duty.

  • States use Clearinghouse data before licensing actions.
  • Prohibited drivers lose the CDL or CLP privilege until return-to-duty is complete.
  • States receiving MCSAP funds must adopt a compatible driving prohibition.
Official summary from the Federal Register
FMCSA is amending its regulations to establish requirements for State Driver's Licensing Agencies (SDLAs) to access and use information obtained through the Drug and Alcohol Clearinghouse (DACH or Clearinghouse), an FMCSA-administered database containing driver- specific controlled substance (drug) and alcohol records. SDLAs must not issue, renew, upgrade, or transfer a commercial driver's license (CDL), or commercial learner's permit (CLP), as applicable, for any individual prohibited under FMCSA's regulations from performing safety- sensitive functions, including driving a commercial motor vehicle (CMV), due to one or more drug and alcohol program violations. Further, SDLAs must remove the CLP or CDL privilege from the driver's license of an individual subject to the CMV driving prohibition, which would result in a downgrade of the license until the driver complies with return-to-duty (RTD) requirements. This rule also requires States receiving Motor Carrier Safety Assistance Program (MCSAP) grant funds to adopt a compatible CMV driving prohibition applicable to CLP and CDL holders who violate FMCSA's drug and alcohol program requirements and makes clarifying and conforming changes to current regulations. The final rule will help keep unsafe drivers off the road by increasing compliance with the CMV driving prohibition.

Our summary restates the rule’s official abstract. It is not legal advice; the rule text (86 FR 55718) and any later amendments control.

03 / Key dates

Dates to know.

Published
Oct 7, 2021
Effective
Nov 8, 2021

04 / The record

Document details.

Federal Register document number
2021-21928
Document type
Final Rule
Docket IDs
Docket No. FMCSA-2017-0330
Regulation Identifier Number (RIN)
2126-AC11

05 / Official source

Read the original.

Read the full text and details of this final rule at the Federal Register.

View on FederalRegister.gov (opens in a new tab)

This page provides structured facts from the official Federal Register document. It does not constitute legal advice. Always verify with official sources and consult qualified professionals.

06 / Calendar

Keep the dates in view.

Important dates from this document are included in the regulatory calendar and iCalendar feed.

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