The Drug and Alcohol Clearinghouse is experiencing technical issues that affect features including bulk queries, letter generation/delivery, and auto-generated email notifications. These technical issues started on May 23, 2024 at approximately 11:00 am ET. The Clearinghouse Team is aware of the issues and is currently working to resolve them.

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Yes. Employers may designate a C/TPA or C/TPAs to conduct queries and/or report violations on their behalf. The C/TPA must be registered in the Clearinghouse before an employer can select the C/TPA, and C/TPAs must be designated by the employer before reporting drug and alcohol program violations or querying the Clearinghouse on their behalf.

An owner-operator (an employer that employs himself or herself as a commercial driver’s license (CDL) driver, typically a single-driver operation) must designate their C/TPA(s) as part of their Clearinghouse registration process.

Last Updated : September 30, 2019