The CLEARINGHOUSE is a federal database which collects, stores, archives data pertaining to CDL drivers' drug and alcohol test results and makes it available for federal and state agencies. It is a centralized system that gives agencies, testing laboratories, state DOTs, state troopers and trucking companies access to a CDL driver's testing data.
In the past, there was no system where pre-employment, random and post-accident follow-up or reasonable suspicion test results were stored. Previously, test results were stored in a Consortium/Third Party Administrator (Random Program Administrator) data files and made available to the DOT only when the DOT requested it, which was rarely, and usually due to an accident or during a DOT Audit. Now, this data is available right away to everyone by requesting queries once a driver completes a test.
Registration in the Clearinghouse is a Federally-required mandate.
The sign-up deadline was January 6, 2020.
Enforcement (for now) is only via a compliance review or a DOT Audit or Post-Accident review and is coming soon to Roadside Inspections by state troopers on daily basis.