Comprehensive Drug Screening & DOT Compliance Services

Revolutionizing Drug and Alcohol Testing Across the Nation. Nationwide Services with one of the largest drug testing companies in the United States.

General InquiriesOrder A Test

FMCSA Drug and Alcohol Clearinghouse Assistance and Services

Drug Test
Alcohol Testing
and ETG
Drug Test

We have over 20,000 collection sites that can provide drug and alcohol testing nationwide. Comprehensive Drug Screening & DOT Compliance Services specializes in federal DOT drug testing, non-DOT drug testing, alcohol testing, random consortiums, drug-free workplace programs, and more. Our team of professionals can help you schedule a drug test anywhere in the US by calling our office at 800-713-5971 or you can order a drug test online, 24/7.

Certified Member

Services We Offer

  • Complete Chain of Custody Management – Electronic Custody and Control Form
  • Expert Laboratory Analysis
  • Online Scheduling, Tracking, and Reporting
  • Electronic Ordering Capabilities (eCCF)
  • Extensive Collection Site Network
  • Random Pool Management
  • Compliance and Audit Assistance
  • Medical Review Officer (MRO) Services
  • Policy Assistance and Management

Owner-Operator Consortium Programs

☑ Pre-Employment Drug Test
☑ FMCSA Clearinghouse Query
☑ Random Testing Consortium

☑ Nationwide Locations
☑ Same Say Service
☑ Simple, Affordable & All Inclusive Package

We offer the following testing

Urine Testing
Hair Testing
DNA Testing
Saliva Testing
Alcohol Testing
Handle Policies

We have over 10,000 locations across the country and we also serve our customers nationwide.
We are a Third Party Administrator, who can also handle all their Drug screening needs.

Areas We Cover


The Latest CDS Blog Posts

Federal Drug Testing Laws

Job applicants or employees in positions such as airline pilots, bus drivers, railroad employees, taxi drivers, and truck drivers are regulated by the Department of Transportation and must comply with federal laws, which require applicants to take and pass a...

What Does a DOT Background Check Consist of?

The DOT requires motor carriers to maintain a driver qualification file for all employees who operate a commercial vehicle. Per the checklist published by the DOT, you are responsible for maintaining records for each employee on the below categories of information...

Adding Services to Handle DOT regulated Companies

We here at Comprehensive Drug Screening will now be helping all DOT regulated companies with drug testing, Consortiums, FMCSA Clearinghouse Services, Randoms Management, and much more. We know most companies do not offer all these services together, but here at (CDS)...

How is Medicinal Marijuana viewed by employers and DOT in drug testing?

Several states have passed medical Marijuana laws, making it legal under state law to use Marijuana for certain medicinal purposes when such use is authorized based upon “physician recommendation.” Regardless of state laws authorizing medical Marijuana use, Marijuana...

Does CBD show up on a drug test?

Theoretically, CBD should not show up on a drug test. However, because most CBD products are classified as a supplement, it is not regulated for safety and purity. This means that contamination of the CBD with THC (tetrahydrocannabinol) may and does occur, and this...