
Employer & DOT Drug Testing Services
Complete Workplace Drug Testing & DOT Compliance Solutions for Employers
Certified DOT Specimen Collection and Logistic Solutions partners with businesses, owner-operators, transportation companies, government agencies, and safety-sensitive employers to provide comprehensive workplace drug testing and DOT compliance services. From pre-employment testing to consortium management and on-site collections, our experienced team helps organizations maintain safe, compliant, and drug-free workplaces.
Our Employer Services
Complete Drug Testing & Compliance Programs

Workplace Drug Testing
Protect Your Workforce with Reliable Drug Testing
Certified DOT offers comprehensive workplace drug testing programs for businesses of every size. Services include pre-employment, random, reasonable suspicion, post-accident, return-to-duty, follow-up, and annual testing. We help employers maintain safe workplaces while supporting company drug-free workplace policies.

DOT Drug Testing
DOT-Compliant Testing for Safety-Sensitive Employees
We perform DOT urine drug testing and alcohol testing in accordance with Federal Motor Carrier Safety Administration (FMCSA) and U.S. Department of Transportation regulations. Every collection follows strict chain-of-custody procedures performed by trained DOT specimen collectors.
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DOT Agencies We Support
Compliance Solutions Across Multiple DOT Modalities
Certified DOT provides testing services for employers regulated by:
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Federal Motor Carrier Safety Administration (FMCSA)
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Federal Aviation Administration (FAA)
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Federal Railroad Administration (FRA)
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Federal Transit Administration (FTA)
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Pipeline and Hazardous Materials Safety Administration (PHMSA)
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United States Coast Guard (USCG)
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Mobile & On-Site Testing
Convenient Testing at Your Workplace
Reduce employee downtime by bringing Certified DOT directly to your facility. Our mobile collection specialists perform on-site drug testing, alcohol testing, and specimen collections at your office, warehouse, job site, or transportation terminal.
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