Is a consortium the same as a C/TPA?

A C/TPA is the company that manages the consortium pool. The consortium is the pool itself.

Can fleets join a consortium?

Small fleets often do, especially if they have only a handful of CDL drivers.

How are selections random?

Selections are pulled by software using a scientifically valid random method across the entire pool.

DOT Drug Testing Basics

What Is a DOT Drug Testing Consortium?

Name: Drug Testing for Truckers
Telephone: 865-992-8089

Last updated: 5/8/2026

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Short answer: A DOT drug testing consortium is a group of employers and owner-operators combined into one random testing pool managed by a Consortium / Third-Party Administrator (C/TPA).

What a consortium does

Pools multiple drivers together so random selections are statistically valid
Pulls random selections throughout the year
Notifies drivers when they are selected
Coordinates with collection sites, labs, and Medical Review Officers
Maintains testing records

Why owner-operators need one

Owner-operators can't run their own random pool — a single-person pool can't generate true random selections. A consortium solves that.

What you can expect after joining

You receive a certificate of enrollment, instructions for designating the C/TPA in your FMCSA Clearinghouse account, and clear guidance on what to do if you are selected for random testing.

How much does it cost?

See our pricing page for current owner-operator and small fleet rates.

Join a DOT consortium for truckers.

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Frequently Asked Questions

Ready to get your DOT drug testing program set up?

Enroll today or talk to us about your fleet. We help owner-operators and small trucking companies get set up quickly.