Format Last Updated FTA Drug and Alcohol Testing Requirements for COVID-19 Frequently Asked Questions (FAQs) PDF June, 2020 DOT COVID-19 Drug & Alcohol Testing Statement of Enforcement Discretion for Substance Abuse Professionals and Service Agents PDF HTML April, 2020 FTA Guidance on Compliance with FTA Drug and Alcohol Testing Regulations Regarding Coronavirus Disease 2019 (COVID-19) PDF HTML March, 2020 DOT Office of Drug And Alcohol Policy and Compliance Notice - Recreational Marijuana PDF HTML December, 2012 DOT Office of Drug And Alcohol Policy and Compliance Notice - Medical Marijuana PDF HTML October, 2009 Frequently Asked Questions regarding the January, 2007 Notice of random drug and alcohol testing rate. The notice announces the random testing rates for employers subject to the Federal Transit Administration's (FTA) drug and alcohol rules. (49 CFR Part 655) HTML January, 2007 Drug and alcohol testing procedures with respect to adulterated, substituted, and diluted specimen results - Summary (49 CFR Part 40) HTML November, 2004 Official and authoritative guidance and interpretation concerning 49 CFR Part 40 from the Office of General Counsel and the Office of Drug and Alcohol Policy and Compliance. PDF HTML June, 2004 DOT HIPAA Responses HTML May, 2003 Drug and Alcohol Testing Regulations Interpretation Letters from the Office of the Chief Counsel HTML May, 2002 Updated: Monday, May 23, 2022