The Behavioral Risk Factor Surveillance System (BRFSS) is a state-based nationwide survey sponsored by the Centers for Disease Control and Prevention (CDC) to gather data on health risk behaviors, preventive health practices, and health care access primarily related to chronic disease and injury health risks in the U.S. The survey has been ongoing in Nevada since 1992. The information gathered is used to identify health issues and determine how public health funds will be expended in Nevada. Currently, data is collected monthly in all 50 states, the District of Columbia, Puerto Rico, the U.S. Virgin Islands, and Guam. More than 350,000 adults are interviewed each year, making the BRFSS the largest telephone health survey in the world. Nevada uses BRFSS data to identify emerging health problems, establish and track health objectives, and develop and evaluate public health policies and programs.