What the annual query requires
Under 49 CFR 382.701(b)(1), employers must query the Clearinghouse at least once per year for every employee subject to Part 382 drug and alcohol testing — to determine whether information exists in the Clearinghouse about those employees. Three things trip people up:
It's every driver, every year — not just new hires.
A driver you queried at hire in March 2025 needs another query by March 2026. The pre-employment query does not satisfy the annual requirement for subsequent years.
"At least once per year" means you set the clock.
The rule doesn't tie the query to a calendar year, an anniversary date, or your DOT audit cycle. It requires a query at least annually. The practical read most carriers use is to query each driver within 12 months of their last query. If you’re unsure how your specific hire dates and query dates line up, verify directly with FMCSA.
Part-time, seasonal, and intermittent drivers count.
If they’re subject to Part 382 testing, they’re subject to the annual query.
Limited query vs. full query — and why the choice matters
You have two ways to satisfy the annual requirement.
Full Query
Releases the driver's actual Clearinghouse records to you. Requires the driver's specific electronic consent inside the Clearinghouse system. This is what a pre-employment query must be under 382.701(a)(2).
Limited Query
Tells you only whether information exists about that driver — not what it is. Requires the driver's general consent, obtained outside the Clearinghouse as a signed form you keep in your own files.
The key advantage of limited queries: a driver's general consent may be effective for more than one year. Collect a multi-year general consent at hire — using FMCSA's sample consent form — and you can run that driver's annual limited query each year without chasing a new signature or waiting for the driver to log into the Clearinghouse portal.
For a fleet with 20 drivers scattered across multiple states, that difference is the whole ballgame. Full queries stall out waiting on drivers to respond in the portal. The trade-off: a limited query that returns a hit triggers a hard deadline.
The 24-hour rule that can pull a driver off the road
This is the part carriers miss.
If a limited query shows information exists, you have 24 hours to run a full query.
Under 382.701(b)(3), if you miss the window, you must not allow the driver to perform any safety-sensitive function until the full query is complete and confirms no prohibitions.
Two consequences follow:
A full query requires the driver's specific electronic consent in the Clearinghouse. If the driver is on a three-day run and doesn't check their portal, you can blow the 24-hour window through no fault of your own — and the driver still can't legally drive until it's resolved. Tell drivers up front that a consent request may appear and needs a same-day response.
“Information exists” is not the same as “the driver is prohibited.” A record can exist for reasons that don’t bar the driver from driving — a completed return-to-duty process, for instance. You won’t know until the full query runs. Don’t treat a limited-query hit as a termination event.
Practical tip: Don't run all your limited queries on a Friday afternoon.
FMCSA Clearinghouse
Want your C/TPA to manage annual queries for your fleet?
APCA handles Clearinghouse queries, random pool, and full FMCSA compliance.
Owner-operators still have to query themselves
If you're a one-truck operation and you employ yourself as a CDL driver, you are both the driver and the employer. The annual query requirement applies to you.
You also can't run your own Clearinghouse compliance solo. Under 49 CFR 382.705(b)(6), an employer who employs himself or herself as a driver must designate a C/TPA to comply with the employer requirements related to their own drug and alcohol use. That designation is part of your Clearinghouse registration.
This mirrors the random testing rule — a self-employed driver not leased to a motor carrier must be enrolled in a consortium pool of two or more covered employees. The federal design assumption is that nobody administers their own compliance program. Learn about FMCSA consortium enrollment →
Recordkeeping, and one notification you shouldn't rely on
382.701(e) requires employers to retain a record of each query and all information received in response for three years. As of January 6, 2023, maintaining a valid Clearinghouse registration satisfies that requirement — the system holds your query history. That's convenient, but it cuts both ways: an auditor can see exactly which drivers you queried and when.
The 30-day notification is not a substitute for a query schedule.
Section 382.701(c) provides that if information about a driver is entered into the Clearinghouse during the 30-day period immediately following your query, FMCSA will notify you. Useful — but it's a 30-day tail on a 365-day cycle.
The Bottom Line
Build a driver roster with a "last query date" column and a reminder set 11 months out. Collect a multi-year general consent for limited queries from every driver at hire and add it to the DQ file. Warn drivers that a full-query consent request may need a same-day response.
If you're an owner-operator, confirm your C/TPA is designated in your Clearinghouse account — not just that you have one.
For background on what a pre-employment query requires and how it starts the annual clock, see our guide on pre-employment drug testing under 49 CFR 382.301. For what happens when a driver has an unresolved violation in the Clearinghouse, see what "Prohibited" status means for a CDL.
Frequently Asked Questions
Does the pre-employment query count as that driver's annual query?
For the year you hired them, a full pre-employment query gives you the information the annual query is designed to surface. The safest practice most carriers follow is to treat the pre-employment query as the start of the driver's 12-month clock and run the next query within a year. Because the rule states "at least once per year" without defining the measuring date, confirm your specific approach with FMCSA if you have an audit coming.
Can my C/TPA run the annual queries for me?
Yes. Any employer may designate a C/TPA to perform Clearinghouse employer requirements. The employer generally retains ultimate responsibility for compliance — the exception is the owner-operator designation under 382.705(b)(6), which specifically requires a C/TPA to handle the employer side of their own record.
What happens if a limited query comes back showing information exists?
Run a full query within 24 hours. If you miss the window, the driver cannot perform safety-sensitive functions until the full query is complete and confirms no prohibitions. A record existing in the Clearinghouse does not automatically mean the driver is prohibited from driving.
Do I need a new consent form every year for limited queries?
Not necessarily. 382.701(b)(2) states that a driver's consent to limited queries may be effective for more than one year. Draft the consent to say so explicitly and keep the signed form in your DQ file — it lives outside the Clearinghouse, so the system won't store it for you.
Does this apply to non-CDL drivers?
The annual query applies to employees subject to controlled substance and alcohol testing under Part 382, which covers CDL drivers operating commercial motor vehicles requiring a CDL. Drivers outside that scope aren't in the Clearinghouse.
Sources
- →49 CFR 382.701 — Drug and Alcohol Clearinghouse (eCFR)
- →49 CFR 382.705 — Reporting to the Clearinghouse (eCFR)
- →49 CFR 382.703 — Driver consent to permit access (eCFR)
- →FMCSA — Consent process for full and limited queries
- →FMCSA — What tests are required and when does testing occur?
- →FMCSA Clearinghouse — Sample general consent form for limited queries
- →FMCSA Clearinghouse — How to designate your C/TPA
- →FMCSA — May an employer authorize a C/TPA to conduct queries?
Related Guides
Pre-Employment Drug Testing for CDL Drivers: What 49 CFR 382.301 Actually Requires
The two things you must have in hand before a CDL driver performs any safety-sensitive function.
FMCSA ComplianceWhat "Prohibited" Clearinghouse Status Means for Your CDL
Over 200,000 drivers are in prohibited status. Here's what it means and how to resolve it.
Regulatory UpdateFMCSA Clearinghouse Now Requires Identity Verification
What employers and C/TPAs need to know about the 2026 identity verification requirement.
FMCSA ComplianceThe DOT Return-to-Duty Process for CDL Drivers
SAP evaluation, observed return-to-duty test, and follow-up testing — step by step.