40 CFR § 180.721 - Isoprothiolane; tolerances for residues.
(a) General. Tolerances are established for residues of the fungicide isoprothiolane, including its metabolites and degradates, in or on the commodities in Table 1 to this paragraph (a). Compliance with the tolerance levels specified in Table 1 to this paragraph (a) is to be determined by measuring only residues of isoprothiolane (bis(1-methylethyl) 2-(1,3-dithiolan-2-ylidene)propanedioate) in or on the commodities:
Table 1 to Paragraph (a)
1 There are no U.S. registrations as of December 6, 2021.