Donald (Don) Pierro was appointed Director of the Tax Audit Division (TAD) of the Alcohol and Tobacco Tax and Trade Bureau (TTB) in 2025, where he leads the planning, development, and oversight of TTB's excise tax audit activities.

Mr. Pierro began his career as an auditor at the Department of Defense, Office of Inspector General (OIG) in Washington DC in 1990. He transitioned to the Department of Transportation, OIG, in 1999 as an audit program manager and was subsequently promoted to Audit Director, Automation and Infrastructure Programs. In 2003, Mr. Pierro joined TTB as a District Director in the Tampa Field Office within TAD. His demonstrated leadership led to his promotion to the Deputy Director, TAD, in 2011. As the Deputy Director, Mr. Pierro oversaw the Division’s day-to-day audit operations. He also collaborated within the Bureau and undertook leadership roles to implement new tax laws and responsibilities that improved taxpayer services, including the successful launch of TTB’s Craft Beverage Modernization Act Importer Claims System.

Mr. Pierro holds a Bachelor of Science in Commerce degree with a Concentration in Accounting from the University of Virginia.