40 C.F.R. § 180.729
Cyclobutrifluram; tolerances for residues.
Cite as 40 C.F.R. § 180.729 (2026)
(a) General. Tolerances are established for residues of the nematicide/fungicide cyclobutrifluram, including its metabolites and degradates, in or on the plant commodities in table 1 to this paragraph (a). Compliance with the tolerance levels specified in table 1 is to be determined by measuring the sum of cyclobutrifluram ( rel-N -[(1 R, 2 R )-2-(2,4-dichlorophenyl)cyclobutyl]-2-(trifluoromethyl)-3-pyridinecarboxamide) and its metabolite 2-trifluoromethyl-nicotinamide, calculated as the stoichiometric equivalent of cyclobutrifluram in or on plant commodities. Table 1 to Paragraph (a) Commodity Parts per million Cotton, gin byproducts 0.02 Cotton, undelinted seed 0.02 Lettuce, leaf 0.06 Soybean, seed 0.03 (b) [Reserved] [90 FR 49259, Nov. 5, 2025]