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Clearinghouse News


11/24/2025

New Learning Center, Email Archive

Updated design makes it easier to find the resources you need.…read more.

9/4/2025

Clearinghouse Update: Materials for Motor Carriers

Download updated resources to help truck and bus companies with U.S. DOT Numbers link their Clearinghouse and Portal accounts.…read more.

Clearinghouse Monthly Summary Reports

Unique CDL/CLP Holders Queried

The number of CDL/CLP holders whose information has been queried by employers (or their designated C/TPA) since January 6, 2020.

Since January 6, 2020, 6,132,792 unique driver records have been queried.

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Drug Violations Reported to Clearinghouse

Since January 6, 2020, there were 347,462 test results reported to the Clearinghouse with drug-related violations. The graph breaks out the results by violation type, for controlled substance (drug) tests.

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Alcohol Violations Reported to Clearinghouse

Since January 6, 2020, there were 8,498 test results reported to the Clearinghouse with alcohol-related violations. The graph breaks out the results by violation type, for alcohol tests.

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Substances Identified in Positive Drug Tests

Positive drug tests account for 82% of the total violations reported. The graph shows total results reported to the Clearinghouse since January 6, 2020 of the number of times a driver tested positive for each substance.

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Unique CDL/CLP Holders Queried

The number of CDL/CLP holders whose information has been queried by employers (or their designated C/TPA) since January 6, 2020.

Since January 6, 2020, 6,091,280 unique driver records have been queried.

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Drug Violations Reported to Clearinghouse

Since January 6, 2020, there were 342,517 test results reported to the Clearinghouse with drug-related violations. The graph breaks out the results by violation type, for controlled substance (drug) tests.

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Alcohol Violations Reported to Clearinghouse

Since January 6, 2020, there were 8,355 test results reported to the Clearinghouse with alcohol-related violations. The graph breaks out the results by violation type, for alcohol tests.

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Substances Identified in Positive Drug Tests

Positive drug tests account for 81% of the total violations reported. The graph shows total results reported to the Clearinghouse since January 6, 2020 of the number of times a driver tested positive for each substance.

Download Report

Unique CDL/CLP Holders Queried

The number of CDL/CLP holders whose information has been queried by employers (or their designated C/TPA) since January 6, 2020.

Since January 6, 2020, 6,060,134 unique driver records have been queried.

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Drug Violations Reported to Clearinghouse

Since January 6, 2020, there were 337,921 test results reported to the Clearinghouse with drug-related violations. The graph breaks out the results by violation type, for controlled substance (drug) tests.

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Alcohol Violations Reported to Clearinghouse

Since January 6, 2020, there were 8,191 test results reported to the Clearinghouse with alcohol-related violations. The graph breaks out the results by violation type, for alcohol tests.

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Substances Identified in Positive Drug Tests

Positive drug tests account for 81% of the total violations reported. The graph shows total results reported to the Clearinghouse since January 6, 2020 of the number of times a driver tested positive for each substance.

Download Report

Unique CDL/CLP Holders Queried

The number of CDL/CLP holders whose information has been queried by employers (or their designated C/TPA) since January 6, 2020.

Since January 6, 2020, 6,016,352 unique driver records have been queried.

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Drug Violations Reported to Clearinghouse

Since January 6, 2020, there were 333,373 test results reported to the Clearinghouse with drug-related violations. The graph breaks out the results by violation type, for controlled substance (drug) tests.

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Alcohol Violations Reported to Clearinghouse

Since January 6, 2020, there were 8,046 test results reported to the Clearinghouse with alcohol-related violations. The graph breaks out the results by violation type, for alcohol tests.

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Substances Identified in Positive Drug Tests

Positive drug tests account for 81% of the total violations reported. The graph shows total results reported to the Clearinghouse since January 6, 2020 of the number of times a driver tested positive for each substance.

Download Report

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Unique CDL/CLP Holders Queried

The number of CDL/CLP holders whose information has been queried by employers (or their designated C/TPA) since January 6, 2020.

Since January 6, 2020, 5,980,476 unique driver records have been queried.

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Drug Violations Reported to Clearinghouse

Since January 6, 2020, there were 328,764 test results reported to the Clearinghouse with drug-releated violations. The graph breaks out the results by violation type, for controlled substance (drug) tests.

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Alcohol Violations Reported to Clearinghouse

Since January 6, 2020, there were 7,916 test results reported to the Clearinghouse with alcohol-related violations. The graph breaks out the results by violation type, for alcohol tests.

Download Report

Substances Identified in Positive Drug Tests

Positive drug tests account for 81% of the total violations reported. The graph shows total results reported to the Clearinghouse since January 6, 2020 of the number of times a driver tested positive for each substance.

Download Report

.

Unique CDL/CLP Holders Queried

The number of CDL/CLP holders whose information has been queried by employers (or their designated C/TPA) since January 6, 2020.

Since January 6, 2020, 5,940,555 unique driver records have been queried.

Download Report

Drug Violations Reported to Clearinghouse

Since January 6, 2020, there were 324,037 test results reported to the Clearinghouse with drug-related violations. The graph breaks out the results by violation type, for controlled substance (drug) tests.

Download Report

Alcohol Violations Reported to Clearinghouse

Since January 6, 2020, there were 7,779 test results reported to the Clearinghouse with alcohol-related violations. The graph breaks out the results by violation type, for alcohol tests.

Download Report

Substances Identified in Positive Drug Tests

Positive drug tests account for 81% of the total violations reported. The graph shows total results reported to the Clearinghouse since January 6, 2020 of the number of times a driver tested positive for each substance.

Download Report