This regulation establishes an exemption from the requirement of a tolerance for residues of poly(oxy-1,2-ethanediyl), [alpha]- [2,4,6-tris(1-phenylethyl)phenyl]-[omega]-hydroxy- (CAS Reg. No. 70559- 25-0) and poly(oxy-1,2-ethanediyl), [alpha]-[tris(1- phenylethyl)phenyl]-[omega]-hydroxy-, (CAS Reg. No. 99734-09-5), herein referred to in this document as tristyrylphenol ethoxylates when used as inert ingredients in post-harvest applications to citrus crops, group 10, under 40 CFR 180.1288 at a maximum of 10.0% in pesticide formulations with azoxystrobin and fludioxonil. Syngenta Crop Protection, 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 the tristyrylphenol ethoxylates.