The Clearinghouse records positive test results, refusals, and other violations, along with return-to-duty and follow-up testing status. Carriers must conduct a full query before hiring and limited queries annually for current drivers.
Drivers with unresolved violations are prohibited from operating commercial vehicles.
Alternative Names:
Drug and Alcohol Clearinghouse, Clearinghouse
Why it Matters?
Failure to query is a documented compliance violation that is easy to prove and difficult to explain, since the query record either exists or does not. A carrier that hired a driver with a recorded violation without querying has handed the plaintiff a direct negligence claim requiring no expert testimony. The annual query requirement for existing drivers is the one most often missed.
Frequently Confused with
Related terms
Frequently asked questions
When must a carrier query the Clearinghouse?
What happens if a driver has an unresolved violation?
