DOT-Compliant Drug Testing Services

Mission Statement

At Clover Comprehensive Screening Services, our mission is to deliver reliable and professional mobile drug testing services that prioritize workplace safety and efficiency. By offering on-site, concierge-style testing, we minimize operational disruptions, allowing employees to remain productive and businesses to reduce costs associated with downtime and travel. Our commitment to excellence ensures that organizations maintain compliance, foster a safe work environment, and enhance their bottom line through streamlined, dependable testing solutions.

DOT-Compliant Drug Testing Services

Non-DOT Drug Testing Services

Now Offering Mobile Ink Fingerprinting Services

We’re pleased to announce that we now provide mobile ink fingerprinting for your convenience. Whether for employment, licensing, certification, or background checks, our trained technicians will come directly to your location and deliver fast, accurate, and reliable ink fingerprinting services.

To schedule an appointment or learn more, contact us today.

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Additional Services Paternity & Postmortem DNA testing coming soon!

Offering legal and non-legal paternity testing services to determine biological relationships.

Clover Comprehensive Screening Services (CCSS)

1(844) 256-8375

1(844) CLOVER-5

1763 Columbia Road, Suite 100 Washington, DC 20009

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Summary of the industry

DOT drug testing is a federally mandated program that ensures employees in safety-sensitive transportation roles—such as truck drivers, pilots, and train operators—are free from drug and alcohol use. It involves urine tests conducted under strict procedures to detect substances like marijuana, cocaine, opioids, amphetamines, and PCP. This testing is crucial for maintaining public safety and compliance with federal regulations.