After a chemical plant in Bhopal killed thousands of people in 1984, Congress asked a question no American law had answered: what is stored in the tank down the road, and who knows. This article explains the statute that resulted. It covers the four reporting duties EPCRA creates, the Toxics Release Inventory that made industrial emissions searchable by anyone, and why publishing numbers reduced them faster than regulation had. It explains the local emergency planning committee most people have never heard of, the citizen suit and the standing rule that limits it, and why environmental justice claims run into Alexander v. Sandoval. It closes with what a resident can actually find out.