This regulation establishes an exemption from the requirement of a tolerance for residues of castor oil, polymer with adipic acid, linoleic acid, oleic acid and ricinoleic acid (CAS Reg. No. 1357486-09- 9) when used as an inert ingredient in a pesticide formulation. Advance Polymer Technology 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 castor oil, polymer with adipic acid, linoleic acid, oleic acid and ricinoleic acid on food or feed commodities.