The federal Special Supplemental Nutrition Program for Women, Infants and Children (WIC) provides supplemental foods, health care referrals, nutrition education, and breastfeeding support for low-income women, infants and children up to age five who are at nutritional risk. The COVID-19 pandemic brought unexpected and unprecedented changes to WIC service delivery in order to protect the health and well-being of participants and staff. Nutrition Policy Institute (NPI) researchers shared experiences of California WIC families during the COVID-19 pandemic at the American Society for Nutrition's annual conference, Nutrition 2021 Live Online, held virtually June 7-10, 2021. The presentation, titled "WIC is critical during the COVID-19 pandemic: Lessons learned from Los Angeles County participants", shared results of data collected from WIC participants and local WIC agency directors in California. Results highlight the significant success of the California WIC program in reaching participants and meeting their needs during the COVID crisis and suggest multiple strategies useful for continued program improvements throughout the nation. NPI's Lorrene Ritchie, Nicole Vital, and Marisa Tsai, presented at the conference in collaboration with Lauren Au of the University of California (UC), Davis Department of Nutrition, and Shannon Whaley, Chris Anderson, Martha Meza, and Catherine Martinez of Public Health Foundation Enterprises, WIC. The project was funded by a grant from the David and Lucille Packard Foundation.