How Does RTD Drug Testing Work?

February 19, 2025

Ophthalmologist's Department

What Is RTD Drug Testing?

Return-to-Duty (RTD) drug testing is a critical part of the Department of Transportation (DOT) drug and alcohol testing program. It ensures that an employee who has previously violated drug and alcohol regulations is fit to return to their safety-sensitive duties.

The RTD test is conducted after the employee has completed the required treatment and education program and has been evaluated by a qualified Substance Abuse Professional (SAP).

Why Is RTD Drug Testing Important?

The primary goal of RTD drug testing is to ensure public safety by confirming that the employee is drug-free and ready to perform their safety-sensitive duties. It helps prevent accidents and maintains a safe working environment for everyone.

The RTD Drug Testing Process: Step-by-Step

  1. SAP Evaluation – The employee must first undergo an evaluation by a qualified SAP. This assessment determines the extent of the substance use issue and recommends appropriate treatment and education.
  2. Treatment & Education – The employee must complete the recommended program, which may include counseling, rehabilitation, or educational courses.
  3. Follow-Up Evaluation – After completing the program, the employee undergoes a second evaluation with the SAP. The SAP assesses progress and determines if they are ready for RTD testing.
  4. RTD Drug Test – The employee takes a DOT-mandated, observed drug test to prevent tampering or cheating.
  5. Test Results – If the employee passes, they can return to safety-sensitive duties. If the test is positive, they must re-enter the treatment and education program.
  6. Follow-Up Testing – The SAP schedules random follow-up tests over a set period to ensure continued compliance.

Conclusion

RTD drug testing is a vital part of DOT compliance, ensuring that safety-sensitive employees who have violated drug and alcohol regulations are truly fit to return to work. By following the process, both employers and employees can meet DOT requirements and maintain a safe work environment.

Need to book your SAP Evaluation?

Schedule an appointment with Resilient Return Counseling Solutions to begin the RTD process and get the support you need.

Karishma Sarfani

Karishma is a Qualified Substance Abuse Professional (SAP) with a background in mental health and substance abuse counseling, holding credentials as an MS, LCDC, ICADC, CADC II, CSAC, CASAC II, LPC, and EMDR-trained therapist. Inspired by personal experiences with addiction and mental health challenges in her community, she has dedicated her career to supporting individuals on their journey to recovery and success.