A federal law called the Emergency Planning and Community Right to Know Act (EPCRA) gives the public the right to know about toxic chemicals being released into the environment. The law requires facilities in certain industries, which manufacture, process, or use significant amounts of toxic chemicals, to report annually on their releases of these chemicals. The reports contain information about the types and amounts of toxic chemicals that are released each year to the air, water, and land as well as information on the quantities of toxic chemicals sent to other facilities for further waste management. All of this information is stored in the Toxic Release Inventory (TRI) database. The data here represents facilities and chemical information that have been extracted from EPA TRIS system for reporting year 2012. The associated chemical data, table R9 TRI Chemicals 2012 is a one to many relationship.