DOT Drug Testing

Federal Compliance for Safety-Sensitive Roles

What is DOT Drug Testing?

Employers under federal rules need testing that follows DOT regulations exactly. We provide compliant collection for safety-sensitive roles in trucking, transit, and more. The process meets federal standards and keeps your company on the right side of the rules. We come to your site to keep your crew working.

Industries Requiring DOT Testing

Trucking and freight
Public transit
Aviation
Pipeline operations
Maritime
Railroad

DOT Testing Panels

Marijuana
Cocaine
Amphetamines
Opioids
PCP

Why Choose Pillar Lab?

100% DOT-compliant collection
Mobile service - we come to your workplace
Certified collectors
Fast scheduling

Mobile dot drug testing in Fresno and Madera

Pillar Lab Services offers collection at homes, offices, and job sites by appointment. Call (559) 668-0793 to confirm the collection location, identification, pricing, and turnaround for your test. Scheduling hours are daily, 8am–6pm Pacific.

Explore mobile testing in Fresno, Madera, and our other service areas, or request an appointment.

Laboratory testing and result reporting

For DOT drug testing, collection is one part of a regulated process. Testing must use an HHS-certified laboratory, and the medical review officer handles the required review and reporting. Confirm the employer’s instructions before scheduling.

Read the U.S. Department of Transportation laboratory guidance.