At the California Asphalt Pavement Association (CalAPA) Spring Asphalt Pavement Conference & Equipment Expo held on March 23-24, 2023 in Ontario, Calif., a presentation titled, "How the Southern Regional Lab Supports Caltrans Paving" was delivered by Sarah Hartz, P.E., Office Chief D08 Southern Regional Lab, Caltrans. Learn about the Caltrans Southern Regional Lab and how this important facility helps Caltrans manage the Quality Assurance program for the Caltrans districts in Southern California.