Robert A. Ringler (Chair):
Robert A. Ringler has been a member of the Los Angeles County Highway Safety Commission (HSC) since 2000. He is the current Chair of the HSC. He was appointed by Supervisor Zev Yaroslavsky to represent the Third Supervisorial District in Los Angeles County. He has a Bachelor's and Master's degree in Psychology. He is a retired Associate Dean from the University of California Los Angeles (UCLA), where he was also a researcher at UCLA's Brain Research and Neuropsychiatric Institute. He is currently a Los Angeles County Deputy Commissioner for Civil Marriages and owner of Bel-Air Wedding Ceremonies. In addition, he is the President of the Bel-Air Beverly Crest Neighborhood Council, the President of the Los Angeles Police Department (LAPD) West Bureau Traffic Committee, President of the Holmby Park Advisory Board and President Emeritus of the Residents of Beverly Glen, Incorporated.

Thurston T. Reese (Vice-Chair):
Thurston Reese has been a member of the HSC since 2003. He was appointed by the Chair of the Board of Supervisors to represent the public school sector in Los Angeles County. He has a Bachelor's and Master's degree from Long Beach State University. He has a Juris Doctorate and extensive background in conflict management, mediation, arbitration and ombudsman services. He provides ADR services for the Los Angeles Superior Courts, United States Postal Service, and National Center for Dispute Settlement and other public and private agencies. He is also a Hearing Examiner for the LAPD. He is a member of the Southern California Mediators Association, the American Bar Association-Dispute Resolution Section and a Chrysler Arbitration Board Member.

Marvin W. Estey:
Marvin Estey has been a member of the HSC since 1993. He was appointed by the Chair of the Board of Supervisors to represent the private school sector in Los Angeles County. He is the immediate past Chair of the HSC and has served as the Vice-Chair. He is a retired engineer and manager from Pacific Bell and a Permanent Deacon in the Roman Catholic Archdiocese of Los Angeles.

Guillermo W. Villalobos:
Guillermo Villalobos has been a member of the HSC since 1992. In the past, he has served as the Chair and Vice-Chair of the HSC. He was appointed by Supervisor Gloria Molina to represent the First Supervisorial District in Los Angeles County. In 1983, he graduated from the University of Southern California (USC) with a degree in Architecture. He is an architect with Barrio Planners, Incorporated. He is a professional licensed Architect in the State of California and the State of Hawaii. He is a member of the American Institute of Architects, Los Angeles Chapter.

Rhett S. Price:
Rhett Price has been a member of the HSC since 1996. In the past, he has served as the Chair and Vice-Chair of the HSC. He was appointed by Supervisor Yvonne Brathwaite Burke to represent the Second Supervisorial District in Los Angeles County. He graduated from USC with a degree in Public Safety and Management. He is currently a sergeant for the California Highway Patrol (CHP).

Praful M. Kulkarni:
Praful M. Kulkarni has been a member of the Los Angeles County Highway Safety Commission (HSC) since 2008. He was appointed by Supervisor Don Knabe to represent the Fourth Supervisorial District in Los Angeles County. He has a Masters of Architecture from the Illinois Institute of Technology in Chicago, a Masters of Business Administration from the executive program at Pepperdine University and a Bachelor of Architecture degree from the prestigious Indian Institute of Technology. In 1991, he founded gkkworks, a planning, architecture and construction services company with over 350 professionals in seven offices in the United States, India and the Middle East. He is a Fellow of the Rockefeller Foundation and serves on the boards of numerous professional organizations including the Indian Institute of Technology Foundation, Design-Build Institute of America, and the Community College Facility Coalition. He is a member of the American College of Healthcare Executives and the Hospital Association of Southern California. He also speaks at local and national industry events on such topics as Working Overseas, Design-Build Delivery and general AEC Business Practices.

John F. Watkins:
John F. Watkins has been a member of the HSC since 2004. He was appointed by Supervisor Michael D. Antonovich to represent the Fifth Supervisorial District of Los Angeles County. He has a Bachelor's degree in Civil Engineering from the University of Texas, Austin. He is a retired senior officer for Jorgensen Steel Company, where he worked for 43 years. He was on Active Duty for the United States (U.S.) Naval Reserve between 1943 and 1946. He has been involved with the Boys Republic Board in Chino Hills and other institutions involved with children at risk. He is a member of numerous committees and councils for schools and community services.