This regulation establishes an exemption from the requirement of a tolerance for residues of tetraethyl orthosilicate when used as an inert ingredient (binder) in pesticides applied to growing crops and raw agricultural commodities after harvest and pesticides applied to animals. Exponent on behalf of LNouvel, Inc. submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting establishment of an exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of tetraethyl orthosilicate when used in accordance with the terms of this exemption.