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EMPLOYER DRUG TESTING · HOUSTON, TX

Employer Drug Testing Programs in Houston, TX

We coordinate DOT and non-DOT drug testing programs for Houston employers through our national lab and collector network. Oil and gas, transportation, construction, and logistics — we understand your industry's compliance requirements.

Two Ways to Test — You Choose

We Come to You

A certified collector travels directly to your worksite, staging area, contractor yard, or facility in Houston. No clinic trips. No employee downtime beyond the collection itself. Ideal for large crews, post-accident testing, and remote job sites.

8,500+ Nationwide Locations

Your employees walk in at any of our partner collection sites across the United States — no appointment required at most locations. Ideal for remote workers, employees in multiple states, and individual pre-employment collections.

Call (219) 315-0345 to confirm which option works best for your program.

Serving Houston Employers

Houston is the energy capital of the United States with massive demand for DOT-compliant drug testing in oil and gas, pipeline, transportation, and construction. We coordinate testing programs through SAMHSA-certified labs and local certified collectors serving Harris County and the greater Houston metro.

How It Works

  1. 1Call or submit your site address, program type (DOT or non-DOT), and timing requirements.
  2. 2We confirm collector availability for Houston and give you a straight answer on scheduling.
  3. 3A local certified collector in the Houston area handles the on-site collection at your location. We coordinate all logistics.
  4. 4Specimens and paperwork go directly to your lab and MRO. Results follow your program.
  • SAMHSA-Certified Lab
  • DOT-Compliant Collections
  • Certified Collectors
  • Chain of Custody Every Time

Frequently Asked Questions

Do you come to our Houston location or offer walk-in collections?

Yes — both. We can send a certified collector directly to your workplace, warehouse, fleet yard, or job site in Houston, or your employees can walk in at any of our 8,500+ partner collection locations nationwide. Call (219) 315-0345 to confirm which option fits your program.

Do you handle DOT testing for Houston employers?

Yes. We handle DOT-regulated drug and alcohol testing including pre-employment, random, post-accident, reasonable suspicion, and return-to-duty collections — on site in Houston or at a nationwide walk-in location.

How quickly can you schedule a collection in Houston?

Same-day and next-day on-site scheduling is available for many locations depending on drive time and collector availability. Walk-in collections are available at 8,500+ partner sites nationwide. Post-accident collections are prioritized — call (219) 315-0345 immediately.

What is the difference between DOT and non-DOT testing?

DOT testing follows federal Department of Transportation regulations and applies to safety-sensitive employees in trucking, aviation, rail, and pipeline. Non-DOT testing follows your company policy. We handle both.

See full comparison →

Ready to Set Up a Drug Testing Program for Your Houston Operation?

We come to your worksite or your employees use any of our 8,500+ locations nationwide. Call or submit your program details and we will confirm the right setup.