In October 2002, Boxer urged the Bush Administration to take specific steps to address the causes of the steep increase in autism cases in California. She wrote Health and Human Services (HHS) Secretary Tommy Thompson to establish a common national standard for the diagnosis of autism; instruct the CDC and the Agency for Toxic Substances and Disease Registry to convene a task force to review the current literature on autism and conduct its own study if necessary; and direct the National Institutes of Health (NIH) and the Centers for Disease Control (CDC) to work with the states to create a national chronic disease database.