Daniel T. Riordan
Acting Deputy Administrator / Assistant Administrator for Headquarters Operations
Daniel T. Riordan serves as the Acting Deputy Administrator of the Alcohol and Tobacco Tax and Trade Bureau (TTB). He also maintains his role as the Assistant Administrator for the Office of Headquarters Operations, overseeing the Alcohol, Labeling and Formulation Division, Regulations and Rulings Division, International Affairs Division, and Scientific Services Division.
Mr. Riordan most recently served as Assistant Administrator for TTB’s Office of Permitting and Taxation overseeing the National Revenue Center, which is responsible for processing permit applications, providing technical advice, and collecting billions in federal excise tax revenue from TTB's regulated industries that manufacture, distribute and import alcohol, tobacco, and firearms and ammunition.
Prior to joining TTB in April 2017, Mr. Riordan served as the Internal Revenue Service (IRS) Human Capital Officer, providing executive leadership and direction in all matters relating to the agency’s employees, including recruitment and the development and retention of an engaged and innovative workforce.
Mr. Riordan’s successful federal career began as an attorney at the United States Equal Employment Opportunity Commission’s Office of Legal Counsel. He later served as General Counsel for the United States Department of Justice Tax Division.
Mr. Riordan joined the Department of Treasury in 2003, serving in key IRS leadership positions including Deputy IRS Human Capital Officer, and Deputy Director of Workforce Relations, and at the United States Mint as the Associate Director for Workforce Solutions.
In 2007, Mr. Riordan was recruited to launch the first Ombudsman Office at the American Red Cross where he addressed complaints, issues, and concerns from diverse stakeholders to develop strategies and resolutions in a collaborative, transparent environment.
Mr. Riordan earned a Juris Doctor degree from George Washington University Law School, a bachelor's degree in business administration from James Madison University, and is a certified mediator.