What is the Return-to-Duty (RTD) Process? The Return-to-Duty (RTD) test is given after a donor violates a company’s drug and alcohol policy, especially in safety-sensitive positions. RTD drug tests are performed after one of three incidents: non-negative test results, removal from duty, or referral to a Substance Abuse Professionals. The RTD process involves steps 1-4:… Continue reading What is the DISA Return-to-Duty Process? | DISA RTD Near you