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DOT Consortium vs. Doing Random Testing Yourself

Some small fleets try to run their own random testing program. Here is how that compares with joining a consortium (C/TPA), and where each one makes sense.

Medically reviewed by Chantal Gabriel, MD Updated October 2026

Random drug and alcohol testing is required for CDL drivers, but how you do it is a choice. You can build and run a program yourself, or join a consortium (C/TPA) that runs it for you. Here is an honest comparison.

Short version: a solo owner-operator cannot run a valid random pool alone. A larger fleet can run its own, but most small fleets save time and reduce audit risk by joining a consortium.

What running your own program means

What a consortium handles

Side-by-side

 Your own programConsortium
Random selectionYou design and defend itRun for you
Solo owner-operatorNot workableThe standard way to comply
Time you spendOngoingMinutes to enroll
Audit recordsYou keep themProvided, including MIS reports
Typical costMRO, admin time and testingFrom $49 per driver per year

When running your own makes sense

A larger fleet with a full-time safety manager, an established MRO relationship and enough drivers for a statistically meaningful pool may prefer to run its own. For owner-operators and small fleets, joining a consortium is usually simpler and safer.

How to decide

  1. Count your CDL drivers, including yourself if you drive.
  2. Ask who will keep selection records and answer an auditor's questions.
  3. Compare the cost of your time and risk with a yearly enrollment fee. See our consortium cost guide.

Ready to join? Enroll online from $49 per year per driver, or call (888) 233-4567.

Frequently asked questions

Can a small fleet run its own random testing program?

A company with enough drivers can run its own program, but it must pick drivers randomly and unannounced with a valid method, keep records, use an MRO, and handle Clearinghouse reporting. Many small fleets find that costs more time and risk than joining a consortium.

Is a consortium cheaper than doing it myself?

For most owner-operators and small fleets, yes, once you count your time, an MRO relationship, record keeping and audit risk. A consortium spreads those costs across many companies.

Can I switch from my own program to a consortium?

Yes. You can enroll your drivers in a consortium at any time. Keep your earlier testing records, since an auditor may ask for them.

Who is responsible if the consortium makes a mistake?

The employer remains responsible for compliance. That is why you should choose a consortium that documents its selections, reports to the Clearinghouse and gives you records you can show an auditor.

Related guides

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Join the DOT random testing consortium online in minutes, from $49 per year per driver. Same-day enrollment documentation.

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Questions? Call (888) 233-4567