Assembly Member, California State Assembly, District 68, 2016-2022

Candidate, California State Assembly, District 73, 2022

Mayor, City of Irvine, 2012-2016

Member, Irvine City Council, 2004-2012

Candidate, California State Assembly, District 70, 2010

Trustee, Board of Education, Irvine Unified School District, 1998-2004

Former Member, Asia/California Trade and Investment Promotion Committee, California State Assembly

Former Member, Budget Committee, California State Assembly

Former Member, Emerging Technologies Committee, California State Assembly

Former Member, Higher Education Committee, California State Assembly

Former Member, Housing and Community Development Committee, California State Assembly

Former Vice Chair, Human Services Committee, California State Assembly

Former Member, Labor and Employment Committee, California State Assembly

Former Member, Select Committee on Emerging Technologies and Innovation, California State Assembly

Former Member, Select Committee on Hate Crimes, California State Assembly

Former Member, Select Committee on Orange County Chronic Homelessness, California State Assembly

Former Member, Select Committee on Small Business and Entrepreneurship, California State Assembly

Former Member, Subcommittee 4 on State Administration, California State Assembly

Former Member, Water, Parks and Wildlife Committee, California State Assembly

Founder, Doctor Choi's Academy, present

Former Professor, California State University, Los Angeles

Former Professor, Coastline Community College

Former Professor, Henderson State University

Former Professor, Saddleback College

Former Professor, University of California, Irvine

Assistant Professor, University of Southern California Graduate School of Library and Information Management, 1976-1981

Language Instructor, Peace Corps, United States State Department, 1968

Member, President's Advisory Council, George Mason University, Seoul Campus, 2015-present

Member, International Advisory Council, Metropolitan City of Incheon, 1969-present

Member, Bethel Church, present

Member, Board of Trustees, Orange County Vector Control District, present

Member, Board of Trustees, Santa Ana River Flood Protection Commission, present

Organizer, Global Village Festival, present

Organizer, Korean American Day Festival, present

Volunteer, Kumon Math and Reading Academic Program, present

Member, Mariners Church, present

Member, Orange County Public Library Advisory Board, present

Former Member, Advisory Council, Crime Survivors, Incorporated

Former Member, Board of Directors, Newport Bay Watershed Executive Committee

Former Member, Board of Directors, Orange County Fire Authority

Former Member, Board of Directors, Orange County Housing Authority Advisory Committee

Former Member, Board of Directors, Orange County Sanitation District

Former Member, Board of Directors, Southern California Association of Governments (SCAG)

Former Member, President's Advisory Council, Concordia University

Awards:

Distinguished Alumni Award, University of Pittsburgh, School of Information Science, 2015;
Distinguished Alumni Award, Kyung Hee University, 2015