This regulation establishes an exemption from the requirement of a tolerance for residues of calcium pantothenate (CAS Reg. No. 137- 08-6) when used as an inert ingredient (enzyme cofactor) in pesticide products applied to/on all growing crops pre-harvest, limited to 0.1% (by weight) in pesticide formulations. SciReg, Inc on behalf of Valagro, S.p.A submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting an establishment of an exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of certain calcium pantothenate when used in accordance with this exemption.