Twin Tiers Drug Testing LLC offers nationwide consortium and third party administrator services, DOT compliance training, Certified Specimen Collector training, supervisor and employee training, consulting, randoms management, instant testing products, and more. Twin Tiers Drug Testing specializes in mobile, electronic, on-site testing. We work with employers, attorneys, sports teams, families, local and state agencies, health systems, and public transit companies; just to name a few. Twin Tiers Drug Testing loves being a part of the community, and giving back locally, and globally. We are a part of the PA Adopt-A-Highway program, volunteer at local animal shelters, host semi-annual blood drives with the American Red Cross, have Christmas food drives for the local Salvation Army, and donate annually to Operation Christmas Child,