Diana Byrnes

Certified Substance Abuse Program Administrator Transit Safety and Workforce DevelopmentLocation: Off-site
Phone: 813-426-6980
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Diana Byrnes joined CUTR in 2003 as a Substance Abuse Management Specialist for the Florida Department of Transportation’s Substance Abuse Management Oversight and Technical Assistance Program.  In this role, Diana performs compliance monitoring, provides technical assistance and delivers training on the topic of federal drug and alcohol testing regulations applicable to safety-sensitive employees in the transit workplace. Ms. Byrnes is also a lead instructor for the Transportation Safety Institute (TSI) course entitled “Substance Abuse Management and Program Compliance”, which she delivers to Florida transit agencies under a Memorandum of Understanding between CUTR and TSI.


  • Subject matter expert in USDOT’s Procedures for Transportation Workplace Drug and Alcohol Testing Programs, codified as 49 CFR Part 40
  • Subject matter expert in FTA’s Prevention of Prohibited Drug Use and Alcohol Misuse in Transit Operations, codified as 49 CFR Part 655


  • Medical Review Officer Associate Certification (MRO-A) earned in 2003
  • Certified Substance Abuse Program Administrator (CSAPA) earned in 2007