This regulation establishes an exemption from the requirement of a tolerance for residues of 2-propenoic acid, 2-methyl-, polymer with 2,5-furandione and 2,4,4-trimethyl-1-pentene, potassium salt; when used as an inert ingredient in a pesticide chemical formulation. Solvay USA, Inc. submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting an exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of 2-propenoic acid, 2-methyl-, polymer with 2,5-furandione and 2,4,4-trimethyl-1-pentene, potassium salt on food or feed commodities.