< All Topics Main FAQs Drug Testing How to run a Clearinghouse query Print How to run a Clearinghouse query PostedJune 28, 2021 UpdatedJuly 1, 2021 ByChris Przybylski 0 out Of 5 Stars 5 Stars 0% 4 Stars 0% 3 Stars 0% 2 Stars 0% 1 Stars 0% The Drug and Alcohol Clearinghouse first took affect in early 2020. All query of all CDL drivers must be conducted at least once per year and prior to hire. Create an account on Clearinghouse.fmcsa.dot.gov Here is a guide on how to register.Be sure to add plenty of credits – a good guide is 2x the number of CDL drivers you employ. Log In Select Conduct a Query (Midway down the page) Add the Driver Information – Click Verify Driver Information Select a Query Type Full – Use this for new hires or those with positive results on a limitedInstructions on Full QueryLimited – Use this for annual reviewInstructions on Limited Query*Note: Full queries will require the driver to log in and sign off, limited queries require a signed consent form that can be found here: Limited Query Release Form Click Conduct Query (Limited) or Send Consent Request (Full) Was this article helpful? 0 out Of 5 Stars 5 Stars 0% 4 Stars 0% 3 Stars 0% 2 Stars 0% 1 Stars 0% How can we improve this article? Name Email Submit Next Do I need a post accident drug test?