Researchers from the University of California–Berkeley investigated associations between California’s 2016 T21 law and adolescent use of tobacco products, including differences across racial and ethnic groups. Comparing 2010–2011 and 2017–2018 health survey data, the study found that the T21 policy was associated with a reduced prevalence of lifetime smokeless tobacco and e-cigarette use, and past-month smokeless tobacco use. T21 was associated with an increased prevalence of past-month e-cigarette use. Among Latinx youth, T21 was associated with reduced lifetime and past-month use of all tobacco products. The findings were mixed among other racial and ethnic groups, indicating that these associations are complex and merit further investigation. Read the paper.