This regulation revises and separates the tolerances for acetochlor in 180.470 into paragraphs (a) through (d) and reassigns many of the current entries from paragraph (a) to paragraph (d), which applies to tolerances for indirect and inadvertent residues. This regulation also establishes several new tolerances and amends several existing tolerances under paragraph (a). It further establishes several new tolerances under paragraph (d); and amends and revises two tolerances moved to that paragraph. Details of these changes are outlined in Unit II. of this document. The Acetochlor Registration Partnership (ARP) and Monsanto Company requested these changes as submitted by petitions to EPA pursuant to the Federal Food, Drug and Cosmetic Act (FFDCA).