The Agency for Toxic Substances and Disease Registry helps to keep America clean. Part of the US Department of Health and Human Services, the agency is dedicated to protecting US citizens from disease and harmful exposure to a wide variety of toxic substances. The organization provides services such as public health assessments of waste sites, health consultations concerning specific hazardous substances, health surveillance and registries, response to emergency releases of hazardous substances, applied research in support of public health assessments, information development and dissemination, and education and training concerning hazardous substances. Its annual budget is more than $75 million.