Section 180.439 - Thifensulfuron methyl; tolerances for residues(a)General. Tolerances are established for residues of thifensulfuron methyl, including its metabolites and degradates, in or on the commodities listed in the following table [below]. Compliance with the tolerance levels specified in the following table [below] is to be determined by measuring only thifensulfuron methyl (methyl 3-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino]carbonyl]amino] sulfonyl]-2-thiophenecarboxylate). | Commodity | Parts per million |
| Barley, grain | 0.05 |
| Barley, hay | 0.8 |
| Barley, straw | 0.10 |
| Canola, seed | 0.02 |
| Chicory, roots | 0.01 |
| Chicory, tops | 0.01 |
| Corn, field, forage | 0.10 |
| Corn, field, grain | 0.05 |
| Corn, field, stover | 0.10 |
| Cotton, gin byproducts | 0.02 |
| Cotton, undelinted seed | 0.02 |
| Flax, seed | 0.02 |
| Oat, forage | 0.2 |
| Oat, grain | 0.05 |
| Oat, hay | 0.05 |
| Oat, straw | 0.10 |
| Rice, grain | 0.05 |
| Sorghum, grain, forage. | 0.05 |
| Sorghum, grain, grain | 0.05 |
| Sorghum, grain, stover | 0.05 |
| Soybean | 0.10 |
| Wheat, forage | 2.5 |
| Wheat, grain | 0.05 |
| Wheat, hay | 0.7 |
| Wheat, straw | 0.10 |
(b)Section 18 emergency exemptions. [Reserved](c)Tolerances with regional registrations. Tolerances are established for residues of thifensulfuron methyl, including its metabolites and degradates, in or on the commodities listed in the following table [below]. Compliance with the tolerance levels specified in the following table [below] is to be determined by measuring only thifensulfuron methyl (methyl 3-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino]carbonyl]amino] sulfonyl]-2-thiophenecarboxylate). | Commodity | Parts per million |
| Safflower, seed | 0.05 |
(d)Indirect or inadvertent residues. [Reserved]69 FR 55982, Sept. 17, 2004, as amended at 69 FR 63957, Nov. 3, 2004; 72 FR 13184, Mar. 21, 2007; 73 FR 47075, Aug. 13, 2008; 75 FR 19277, Apr. 14, 2010; 77 FR 52240, Aug. 29, 2012; 80 FR 72599, Nov. 20, 2015