(a) General.
(1) Tolerances are established for residues of prothioconazole, 2-[2-(1-chlorocylcopropyl)-3-(2-chlorophenyl)-2-hydroxypropyl]-1,2-dihydro-3H-1,2,4-triazole-3-thion, 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 prothioconazole and its metabolite prothioconazole-desthio, or α-(1-chlorocyclopropyl)-α-[(2-chlorophenyl)methyl]-1H-1,2,4-triazole-1-ethanol, calculated as parent in or on the commodity.
| Commodity | Parts per million |
|---|---|
| Alfalfa, forage | 0.02 |
| Alfalfa, hay | 0.02 |
| Beet, sugar, roots | 0.25 |
| Berry, low growing, except strawberry, subgroup 13-07H | 0.20 |
| Bushberry, subgroup 13-07B | 2.0 |
| Corn, sweet kernel plus cob with husks removed | 0.04 |
| Cotton, gin byproducts | 4.0 |
| Cottonseed subgroup 20C | 0.4 |
| Grain, aspirated grain fractions | 11 |
| Grain, cereal, forage, fodder and straw, group 16, except sorghum, and rice; forage | 8.0 |
| Grain, cereal, forage, fodder and straw, group 16, except sorghum, and rice; hay | 7.0 |
| Grain, cereal, forage, fodder and straw, group 16, except sorghum, and rice; stover | 10 |
| Grain, cereal, forage, fodder and straw, group 16, except sorghum, straw | 5.0 |
| Grain, cereal, group 15, except sweet corn and sorghum | 0.35 |
| Pea and bean, dried shelled, except soybean, subgroup 6C | 0.9 |
| Peanut | 0.02 |
| Potato | 0.02 |
| Rapeseed subgroup 20A | 0.15 |
| Rice, hulls | 0.90 |
| Soybean, forage | 4.5 |
| Soybean, hay | 17 |
| Soybean, seed | 0.15 |
| Sunflower subgroup 20B1 | 0.2 |
| Vegetable, cucurbit, crop group 9 | 0.30 |
1There are no U.S. registrations allowing use of prothioconazole on the commodities in the Sunflower subgroup 20B as of August 16, 2017.
(2) Tolerances are established for residues of prothioconazole, 2-[2-(1-chlorocylcopropyl)-3-(2-chlorophenyl)-2-hydroxypropyl]-1,2-dihydro-3H-1,2,4-triazole-3-thion, 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 prothioconazole and its metabolites prothioconazole-desthio, or α-(1-chlorocyclopropyl)-α-[(2-chlorophenyl)methyl]-1H-1,2,4-triazole-1-ethanol, and conjugates that can be converted to these two compounds by acid hydrolysis, calculated as parent in or on the commodity.
| Commodity | Parts per million |
|---|---|
| Cattle, fat | 0.1 |
| Cattle, meat | 0.02 |
| Cattle, meat byproducts | 0.2 |
| Goat, fat | 0.1 |
| Goat, meat | 0.02 |
| Goat, meat byproducts | 0.2 |
| Hog, meat byproducts | 0.05 |
| Horse, fat | 0.1 |
| Horse, meat | 0.02 |
| Horse, meat byproducts | 0.2 |
| Milk | 0.02 |
| Poultry liver | 0.02 |
| Sheep, fat | 0.1 |
| Sheep, meat | 0.02 |
| Sheep, meat byproducts | 0.2 |
(b) Section 18 emergency exemptions. [Reserved]
(c) Tolerances with regional registrations. [Reserved]
(d) Indirect or inadvertent residues. [Reserved]
[72 FR 11783, Mar. 14, 2007, as amended at 73 FR 14719, Mar. 19, 2008; 74 FR 14749, Apr. 1, 2009; 74 FR 46699, Sept. 11, 2009; 75 FR 29914, May 28, 2010; 76 FR 61592, Oct. 5, 2011; 78 FR 67052, Nov. 8, 2013; 81 FR 78923, Nov. 10, 2016; 82 FR 38846, Aug. 16, 2017; 83 FR 52991, Oct. 19, 2018]
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