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NHTSA Leadership

Meet Key Officials

Steven Cliff

Deputy Administrator

Cliff oversees NHTSA, the nation’s vehicle safety agency that sets vehicle safety standards, identifies safety defects and manages recalls, and educates Americans to help them drive, ride, and walk safely. NHTSA’s work also includes establishing fuel economy regulations and helping facilitate the testing and deployment of advanced vehicle technologies. Full bio

Ann Carlson

Chief Counsel

Carlson oversees legal services across the agency, including the agency’s statutory authorities. Her office supports NHTSA’s mission in a variety of ways, including setting and enforcing fuel economy standards for cars and trucks, setting and enforcing vehicle safety standards, and overseeing investigations and litigation. Full bio

Ron Thaniel

Director, Governmental and External Affairs

Thaniel leads NHTSA’s Office of Governmental Affairs, Policy and Strategic Planning. He works closely with the Office of the Secretary of Transportation and other modal leadership to ensure strategic alignment, coordination and focus on transportation safety priorities. Full bio

Jack Danielson

Executive Director

Danielson oversees the agency’s daily operations, program offices, and mission support programs, and provides executive direction over NHTSA’s eight associate administrators, chief financial officer, and chief technology officer. Full bio

Regina Morgan

Director, Civil Rights

Morgan serves as the principal staff advisor on civil rights and equal opportunity matters to the agency’s administrator and deputy administrator. Full bio

Rachel Milberg 

Acting Chief Financial Officer


Hector Huezo 

Acting Associate Administrator, Administration


Rajeev Dolas

Chief Technology Officer

Dolas provides leadership and oversight for the agency’s information technology systems and services that provide essential support for NHTSA’s mission to save lives and prevent injuries on our nation’s roads. Full bio

Julie Vallese

Associate Administrator, Communications and Consumer Information

Vallese manages the office responsible for providing accurate and timely vehicle and traffic safety information to consumers, media, and partner organizations. Full bio

Nanda Srinivasan

Associate Administrator, Research and Program Development

Srinivasan oversees four offices within the agency that formulate, implement, and evaluate traffic safety programs. Full bio

Barbara Sauers

Acting Associate Administrator, Regional Operations and Program Delivery


Chou-Lin Chen

Associate Administrator, National Center for Statistics and Analysis

Chen oversees the agency’s critical data collection and analysis portfolio in support of NHTSA’s mission of reducing deaths, injuries, and economic losses from motor vehicle crashes. Full bio

Cem Hatipoglu

Associate Administrator, Vehicle Safety Research

Hatipoglu is responsible for the agency’s vehicle safety research activities, which are focused on achieving NHTSA’s mission of reducing fatalities and injuries caused by motor vehicle crashes. Full bio

Ryan Posten

Associate Administrator, Rulemaking

Posten leads the development and delivery of NHTSA’s rulemakings and policy, including setting the nation’s vehicle safety standards and fuel economy regulations. Full bio

Anne Collins

Associate Administrator, Enforcement

Collins is the principal advisor to the agency’s senior leaders on matters related to enforcement actions. Full bio