Your drug and alcohol tesing program must be able to stand up to legal challenges. With changes continually being made in drug testing requirements, it is imperative that you chose a facilty that has a firm grasp on the latest Federal and State laws for drug and alcohol testing.  All laboratory based testing is done by a SAMSHA certified (federally approved) laboratory.  In addition both DOT & Non-DOT drug screens are performed according to federal regulations (49 CFR Part 40).  EDT has a 100% success rate.  We have never had a result overturned thru litigation.  Our proven track record is just one example of our true commitment to excellence in the drug and alcohol testing industry.