This regulation amends an exemption from the requirement of a tolerance for residues of the microbial insecticide. Beauveria bassiana HF23 (40 CFR 180.1273) on all food commodities when used to treat chicken and livestock facilities, from which manure will eventually be composted and used as fertilizer on agricultural crops. JABB of the Carolinas submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting this amendment of the exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of Beauveria bassiana HF23.