Home > Products and Services > Drug and Alcohol Testing Drug & Alcohol Testing For the past 25 years, Concorde has been performing drug and alcohol testing services for Fortune 500 companies, government agencies, utility companies, and small businesses. Why Choose Concorde? Our industry experience, along with our proprietary technology, has allowed Concorde to streamline the entire drug and alcohol testing process. Whether you are testing employees in a single location, or multiple sites nation-wide, Concorde will be here for you every step of the way. Select A Program Type: Click Here If You Are Regulated by the U.S. Department of Transportation The U.S. Department of Transportation mandates that transportation employers and employees are subject to drug and alcohol testing. This includes companies operating under the following modes: FMCSA, FAA, and FRA. Click Here If You Are Not Regulated By a Government Agency Concorde specializes in developing and managing programs for transportation companies operating under the Federal Motor Carrier Safety Administration (FMCSA) Find out if you fall under the FMCSA mode for drug and alcohol testing requirements.           California Supreme Court Decision Regarding Compassionate Use Act (Medical Marijuana) -Prepared by Arthur J. Cohen, Esq., VP of Operations and General Counsel.