A produce seller holds a statutory trust over the buyer's inventory and receivables from the moment the goods are delivered, ahead of the buyer's secured lender, and loses it entirely by missing a short deadline. This article explains that trust and the preservation mechanics that decide most cases. It then covers marketing orders and the volume and quality controls they impose, commodity checkoff assessments and the First Amendment challenges that have reshaped them, and the prompt payment and trade practice rules governing livestock and meatpacking. It closes with the judicial review structure that determines who can challenge any of it.