This regulation establishes an exemption from the requirement of a tolerance for residues of the HPPD-4 protein derived from the 4- hydroxyphenylpyruvate dioxygenase enzyme of Pseudomonas fluorescens in or on all food commodities, when used as a plant-incorporated protectant inert ingredient. Bayer CropScience LP submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting this exemption from the requirement of a tolerance. This regulation eliminates the need under FFDCA to establish a maximum permissible level for such residues.