Good morning. This one is for shops that run at least one truck big enough to need a commercial driver's license. If that's not you, this one can wait. If it is: under a rule that took effect in November 2024, a failed or refused DOT drug or alcohol test no longer just takes your driver off the truck. It can also cost them the commercial privilege on their license.
Top story — "prohibited" now means losing the CDL, not just the seat
Under the first Clearinghouse rule, a driver with a drug or alcohol violation on record has been barred from operating a commercial motor vehicle until they finish the return-to-duty process. What changed on November 18, 2024 is what happens to the license. Under FMCSA's second Clearinghouse rule, once a state is notified that a CDL or learner's-permit holder is prohibited, it must start its downgrade process and complete and record the downgrade within 60 days of receiving that notice (49 CFR 383.73(q)). "Downgrade" here means the state removes the commercial privilege from the driver's license — the regular license stays; the CDL does not.
Getting it back runs through the return-to-duty process: an evaluation by a substance abuse professional, the steps that professional sets, then a return-to-duty test. FMCSA's own report says a driver "is no longer prohibited from performing safety-sensitive functions once they have a negative RTD test result," and its FAQ says that once the status reads "not prohibited," the state "will allow you to reinstate your commercial driving privileges." Follow-up testing continues after that.
What this means for an owner: a prohibited driver already couldn't drive a CMV for you. Now, once the state acts, they also don't hold a CDL — and states must query the Clearinghouse before issuing, renewing, transferring or upgrading one.
Quick hits
The pool is large. As of January 2, 2026, FMCSA counted 328,431 CDL and learner's-permit holders with at least one violation on record. 202,345 were in "prohibited" status, and 159,226 of those — nearly four in five — had not started the return-to-duty process (FMCSA Clearinghouse December 2025 Monthly Summary Report). Another 126,086 had cleared to "not prohibited."
Where the CDL line sits. The federal commercial-vehicle groups cover a single vehicle rated or weighing 26,001 lbs or more; a truck-and-trailer combination at 26,001 lbs or more where the trailer itself is rated or weighs over 10,000 lbs; a vehicle designed to carry 16 or more passengers, including the driver; and a vehicle of any size hauling placarded hazardous materials (49 CFR 383.5 and 383.91). The weight ratings on your own trucks and trailers are the place to start.
Your own exposure is bigger than the driver's. FMCSA's penalty schedule caps an employer's violation of the Clearinghouse rules — which include the required queries — at $7,155. An employer that lets a driver perform safety-sensitive work after determining the driver violated the drug and alcohol rules falls under the general cap of $19,246 per violation. A driver's own cap for violating the testing rules is $4,812 (49 CFR part 386, Appendix B). All three are maximums.
The Tip — know the three query rules
The rule text is short, and one part is easy to miss. First, before a driver performs safety-sensitive work for you, the employer must run a full query, which needs the driver's specific consent. Second, the employer must query at least once a year for every driver subject to testing; a limited query satisfies that, with the driver's consent — and the driver can give that consent for more than one year. Third, if a limited query shows any information exists, the employer must run a full query within 24 hours; if it doesn't, the driver can't keep doing safety-sensitive work until a full query shows no prohibition (49 CFR 382.701). One more useful detail: if a violation is entered about a driver in the 30 days after you query them, FMCSA says it will notify you.
If one downgraded license would strand a truck, that's a bench problem worth solving before it happens. If you're unsure which of your vehicles or drivers are covered, ask FMCSA or a transportation-compliance adviser.
Tool watch — [Not sponsored]
The FMCSA Drug & Alcohol Clearinghouse (clearinghouse.fmcsa.dot.gov). Registration is free. Queries are not: FMCSA charges a flat $1.25 per query, limited or full, bought as a query plan. A limited query tells you only whether a record exists; a full query, with the driver's consent, shows what it is. Drivers who register can view their own record at no cost. Not sponsored — it's a federal system, and the rules require employers to query it for drivers subject to DOT testing.
That's the callout. See you next time.
The Callout — the business brief for the trades. We label every Tool watch: [Sponsor], [Affiliate], or [Not sponsored] — even the free ones. Today's is our own honest read; no one paid for it. 231J Ramparts Road, Te Anau 9600, New Zealand · Unsubscribe anytime. Nothing in The Callout is legal advice. Confirm your own obligations with FMCSA or a transportation-compliance adviser.
Sources
FMCSA Drug & Alcohol Clearinghouse — December 2025 Monthly Summary Report, p. 9, "CDL/CLP Holders in the Return-to-Duty (RTD) Process as of Jan 2, 2026" (328,431; 202,345; 159,226; 126,086) and footnote on when a driver is no longer prohibited. https://clearinghouse.fmcsa.dot.gov/content/resources/Clearinghouse_MonthlyReport_December2025.pdf
FMCSA Clearinghouse FAQ — "CDL Downgrades" (Clearinghouse II, 86 FR 55718; SDLAs must remove commercial driving privileges as of November 18, 2024; reinstatement after status returns to "not prohibited"). https://clearinghouse.fmcsa.dot.gov/FAQ/Topics/CDL-Downgrades
49 CFR 383.73(q) — state downgrade within 60 days of the State's receipt of notification; "downgrade" defined as removal of the CLP or CDL privilege. https://www.law.cornell.edu/cfr/text/49/383.73
49 CFR 382.701 — pre-employment full query; annual query; limited-query consent; full query within 24 hours; FMCSA 30-day notification. https://www.law.cornell.edu/cfr/text/49/382.701
49 CFR 382.501 — removal from safety-sensitive function (driver and employer). https://www.law.cornell.edu/cfr/text/49/382.501
49 CFR 383.5 and 383.91 — commercial motor vehicle definition and Groups A, B and C. https://www.law.cornell.edu/cfr/text/49/383.5 · https://www.law.cornell.edu/cfr/text/49/383.91
49 CFR part 386, Appendix B — (a)(3) $19,246; (a)(4) $4,812 for drivers (part 382 subparts A–F); (b) $7,155 for violations of part 382 subpart G; as amended through 91 FR 45660, July 21, 2026. https://www.law.cornell.edu/cfr/text/49/appendix-B_to_part_386
FMCSA Clearinghouse FAQ — "Queries and Consent Requests" ($1.25 per query; no fee for registration; drivers view own record at no cost). https://clearinghouse.fmcsa.dot.gov/FAQ/Topics/Queries-and-Consent-Requests
All read live September 23, 2026 (CFR text via the Legal Information Institute's eCFR mirror); Appendix B amounts and the query fee re-checked October 16, 2026.