.Principal Guidance, Ames Analysis CenterDan Hymer (Acting).Chief Advice, Armstrong Trip Research CenterBrett Swanson.Main Advice, Glenn Research Center Callista M. Puchmeyer.Principal Advise, Goddard Room Flight CenterDave G. Barrett.Principal Counsel, Johnson Room CenterRandall T. Suratt (Acting).Chief Counsel, Kennedy Area CenterAlex Vinson.Principal Advise, Langley Study CenterAndrea Z. Warmbier.Principal Counsel, Marshall Space Air Travel CenterPam A. Bourque.Principal Advise, NASA Monitoring Workplace at JPL James T. Mahoney.Chief Advice, NASA Shared Service Center Ron Bald.Chief Counsel, NASA Stennis Room Facility Ron Bald.