Pesticide Tolerances: Propylene Oxide

The commenter supports the establishment of standardized propylene oxide (PPO) tolerances but requests further operational guidance on how to monitor reaction products like propylene chlorohydrin (PCH) during inspections. They also suggest the agency assess cumulative background dietary exposure to PCH from food manufacturing processes and note the inhalation risks to workers.

The commenter supports the proposed regulation establishing tolerances for propylene oxide (PPO) residues in various spices and peppers. They argue that clear, science-based standards provide a transparent framework for compliance, protect public health, and reduce uncertainty in agricultural trade and supply chains.