At One Clear Test, we provide reliable, on-site mobile drug testing for organizations that require accuracy, speed, and convenience. Located in Euclid, Ohio, we bring certified DOT and Non-DOT testing directly to your workplace — saving you time, minimizing downtime, and ensuring your team stays compliant with federal and company-specific requirements.

We also offer full Consortium/Third-Party Administrator (C/TPA) services, including complete management of DOT-compliant random testing pools, making compliance effortless for employers.

We specialize in:
✅ Mobile On-Site Drug Testing (DOT & Non-DOT)
✅ Consortium Services & Random Pool Management
✅ DOT-Compliant Random Selections
✅ Pre-Employment, Random, Annual & Follow-Up Testing
✅ Post-Accident & Reasonable Suspicion Testing
✅ 24/7 After-Hours & Emergency Response Services
✅ Return-to-Duty & SAP Program Coordination

With One Clear Test, employers gain:
• Fast response times
• Certified, accurate collections
• Confidential, professional service
• A partner that helps maintain full DOT and company compliance

From trucking and logistics to construction, manufacturing, staffing, and healthcare, we support safety-sensitive and non-safety-sensitive workplaces across Northeast Ohio.

One Clear Test

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One Clear Test

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