Christopher A. Hart was sworn as the 13th chairman of the NTSB during ceremony presided over by Chief Administrative Law Judge Alfonso Montano. Chairman Hart is an aerospace engineer, attorney, and licensed pilot with commercial, multi-engine, and instrument ratings. Prior to stepping into role of acting chairman, Hart had served as vice chairman and a member of the Board since 2009. He also served as a member of the Board from 1990 to 1993.