Diane M. L. Tan is an Administrative Law Judge in the Child Support Hearings Bureau of the California Department of Social Services in Los Angeles. She previously was a Deputy Attorney General in the Health Quality Enforcement Section and the Licensing Section of the Attorney General’s Office of the California Department of Justice; a Fair Employment and Housing Counsel at the California Department of Fair Employment and Housing; a Deputy State Public Defender at the California State Public Defender’s Office; and in private practice in Los Angeles Chinatown.

Ms. Tan is a board member and former president of the Japanese American Bar Association (JABA), an advisor to the Multicultural Bar Alliance (MCBA), and has served as co-chairperson of the MCBA. She has served as a co-chairperson of the Asian Pacific American Women Lawyers Alliance (APAWLA) and as the affiliate governor for APAWLA in California Women Lawyers for several years. She and other APA women attorneys created APAWLA in 1993. She has served as a board member of the Asian Pacific American Bar Association (APABA) and the Southern California Chinese Lawyers Association (SCCLA), and was a founding member of APABA. She also is a board member of the Friends of Chinese American Museum in Los Angeles.