Everything you throw away belongs to somebody, and the law spends most of its energy deciding who. This article explains the waste regulatory system from the point where a material becomes a waste to the point where liability for it ends, which is later than most people expect. It covers the deceptively difficult question of what counts as a solid waste, the generator categories that determine nearly every obligation, and the cradle-to-grave tracking system that follows hazardous waste to its final destination. It explains landfill and disposal facility regulation, the corrective action obligations that outlive operations, and the citizen suit provision that lets neighbors enforce the rules directly. It covers the constitutional fights over where waste may be sent, the growing state producer responsibility programs shifting end-of-life costs onto manufacturers, and the recycling claims that have become a consumer protection issue. It closes with the practical program a facility needs.