The FMCSA Clearinghouse is a federal database of CDL drug and alcohol program violations. Employers run a full query before hiring (with specific consent) and limited queries at least annually for employed CDL drivers (with general consent on file). Carriers should retain evidence of queries, consent, and follow-up. This guide explains the obligation — it is not a substitute for the FMCSA employer account process.
Full query vs limited query
Full query: used in the hiring path; requires the driver’s specific electronic consent in the Clearinghouse. Limited query: recurring check for current employees; relies on a general consent the employer obtains and keeps. A limited query that returns a hit triggers a full query follow-up path.
What to keep in (or linked from) the driver file
Consent records, query dates, result summaries as allowed, and notes when a driver is removed from safety-sensitive work. Privacy rules still apply — not every staff member should browse raw violation detail.
Where this sits vs background checks
Clearinghouse queries are a federal CDL drug-and-alcohol program duty. Criminal or credit background checks are separate products and processes. Keep the obligations distinct in your checklists so neither is skipped.
Consent types you will be asked about
Full query: the driver consents electronically in the Clearinghouse for that specific query. Limited query: you already hold a general consent from the employed driver. A limited query that returns a hit is not the end of the story; it opens the full-query follow-up path. Put both consent artifacts where the program file owner can find them in under a minute.
FAQ
Does a Canadian abstract replace a Clearinghouse query?
No. Abstracts cover driving history in a province. Clearinghouse covers US CDL drug and alcohol violations. Cross-border CDL work needs both where each rule applies.
Related guides
When you are ready for software
Editorial links to the TruckerPro product site (separate intent from these guides):
- Track Clearinghouse dates in TruckerPro (truckerpro.ca)
- FMCSA Clearinghouse obligation tracking (product) (truckerpro.ca)
Related reading on truckerpro.ca
Deeper regulatory articles and the software side of the same job, on our product site:
- Canada’s drug and alcohol Clearinghouse equivalent (truckerpro.ca)
What Canadian carriers use where US carriers query the FMCSA Clearinghouse. - Clearinghouse query tracking (truckerpro.ca)
Keeping annual and pre-employment queries evidenced against each driver. - Driver file management in a TMS (truckerpro.ca)
Expiry tracking, audit packets and version history without the binder. - Driver retention strategies (truckerpro.ca)
Why onboarding paperwork is a retention problem, not just a compliance one.
Ready to digitize driver files?
TruckerPro tracks licences, medicals, abstracts/MVRs, and expiries for US and Canadian fleets — free company signup, free demo on request.