This regulation amends the existing tolerance exemption for peroxyacetic acid by establishing an exemption from the requirement of a tolerance for residues of the biochemical pesticide peroxyacetic acid (PAA) and its metabolites and degradates, including hydrogen peroxide (HP) and acetic acid (AA), in or on all food commodities, when PAA is used as a biochemical pesticide in accordance with good agricultural practices. BioSafe Systems, LLC submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting that EPA amend the existing PAA tolerance exemption. This regulation eliminates the need to establish a maximum permissible level for residues of PAA under the FFDCA.