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*CH II went into effect November 18, 2024*


Drivers in "prohibited" status on the FMCSA Clearinghouse will have their commercial driving privileges downgraded until they comply with the RTD Process.

Call today for more information!
Positive Drug Test?
888-792-2727
Positive Drug Test?
Call 888-792-2727

Employee Resources

Locate a qualified DOT Substance Abuse Professional (SAP) in our nationwide network, including all 50 states and U.S. territories.
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Find the answers to many of the most commonly asked questions about DOT drug and alcohol testing.
Drug Testing FAQs
Review our database of the most frequently asked questions about the FMCSA Clearinghouse.
Clearinghouse FAQs
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American Substance Abuse Professionals, Inc.

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10151 York Road, Suite 120
Cockeysville, MD 21030
888.792.2727

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