Section 180.650 - Isoxaben; tolerances for residues(a)General. Tolerances are established for residues of the herbicide isoxaben, including its metabolites and degradates, in or on the commodities in the table below. Compliance with the tolerance levels specified below is to be determined by measuring only isoxaben, N-[3-(1-ethyl-1-methylpropyl)-5-isoxazolyl]-2, 6-dimethoxybenzamide, in or on the commodity. | Commodity | Parts per
million |
| Almond, hulls | 0.40 |
| Apple | 0.01 |
| Bushberry subgroup 13-07B | 0.01 |
| Caneberry subgroup 13-07A | 0.01 |
| Fruit, small, vine climbing, except fuzzy kiwifruit, subgroup 13-07F | 0.01 |
| Hop, dried cones | 0.01 |
| Nut, tree, group 14-12 | 0.02 |
(b)Section 18 emergency exemptions. [Reserved](c)Tolerances with regional registrations. [Reserved](d)Indirect or inadvertent residues. [Reserved]75 FR 69360, Nov. 12, 2010, as amended at 83 FR 5312, Feb. 7, 2018; 85 FR 29344, May 15, 2020