This regulation establishes an exemption from the requirement of a tolerance for residues of the microbial antifungal agent Aspergillus flavus AF36, a non-aflatoxin-producing member of the naturally-occurring genus of fungi Aspergillus, in or on the food/feed commodity cotton, when the pesticide is used according to its label instructions as a prebloom application. The Interregional Research Project Number 4 (IR-4), on behalf of the Arizona Cotton Research and Protection Council, submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), as amended by the Food Quality Protection Act of 1996 (FQPA), requesting an exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of Aspergillus flavus AF36 in or on cotton and its food/feed commodities.