This regulation establishes tolerances for residues of pyriofenone in or on the caneberry subgroup (crop subgroup 13-07A), the bushberry subgroup (crop subgroup 13-07B), the small fruit vine climbing subgroup (crop subgroup 13-07D), the low growing berry subgroup except cranberry (crop subgroup 13-07G) and cucurbit vegetables (crop group 9). ISK Biosciences Corporation requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA).