This regulation establishes an exemption from the requirement of a tolerance for residues of oxirane, 2-methyl-, polymer with oxirane, monoundecyl ether, branched and linear (CAS Reg. No. 2222805- 23-2) when used as an inert ingredient in a pesticide chemical formulation. Exponent, Inc. on behalf of Clariant Corporation submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting an amendment to an existing requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of oxirane, 2-methyl-, polymer with oxirane, monoundecyl ether, branched and linear.