§ 180.227 - Dicamba; tolerances for residues.  


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  • § 180.227 Dicamba; tolerances for residues.

    (a) General.

    (1) Tolerances are established for the residues of the herbicide dicamba (3,6-dichloro-o-anisic acid), including its metabolites and degradates, in or on the commodities in the table below. Compliance with the tolerance levels is to be determined by measuring only the sum of the residues of dicamba (3,6-dichloro-o-anisic acid) and its metabolite, 3,6-dichloro-5-hydroxy-o-anisic acid, calculated as the stoichiometric equivalent of dicamba, in or on the following commodities:

    Commodity Parts per million
    Barley, grain 6.0
    Barley, hay 2.0
    Barley, straw 15.0
    Corn, field, forage 3.0
    Corn, field, grain 0.1
    Corn, field, stover 3.0
    Corn, pop, grain 0.1
    Corn, pop, stover 3.0
    Corn, sweet, forage 0.50
    Corn, sweet, kernel plus cob with husks removed 0.04
    Corn, sweet, stover 0.50
    Grass, forage, fodder and hay, group 17, forage 125.0
    Grass, forage, fodder and hay, group 17, hay 200.0
    Millet, proso, forage 90.0
    Millet, proso, grain 2.0
    Millet, proso, hay 40.0
    Millet, proso, straw 30.0
    Oat, forage 90.0
    Oat, grain 2.0
    Oat, hay 40.0
    Oat, straw 30.0
    Rye, forage 90.0
    Rye, grain 2.0
    Rye, straw 30.0
    Sorghum, grain, forage 3.0
    Sorghum, grain, grain 4.0
    Sorghum, grain, stover 10.0
    Sugarcane, cane 0.3
    Sugarcane, molasses 5.0
    Teff, forage 90.0
    Teff, grain 6.0
    Teff, hay 40.0
    Teff, straw 30.0
    Wheat, forage 90.0
    Wheat, grain 2.0
    Wheat, hay 40.0
    Wheat, straw 30.0

    (2) Tolerances are established for residues of the herbicide dicamba, 3,6-dichloro-o-anisic acid, including its metabolites and degradates, in or on the commodities in the table below. Compliance with the tolerance levels is to be determined by measuring only the residues of dicamba (3,6-dichloro-o-anisic acid) and its metabolite, 3,6-dichloro-2-hydroxybenzoic acid, calculated as the stoichiometric equivalent of dicamba, in or on the following commodities:

    Commodity Parts per million
    Asparagus 4.0
    Cattle, fat 0.3
    Cattle, kidney 25.0
    Cattle, meat 0.25
    Cattle, meat byproducts, except kidney 3.0
    Goat, fat 0.3
    Goat, kidney 25.0
    Goat, meat 0.25
    Goat, meat byproducts, except kidney 3.0
    Hog, fat 0.3
    Hog, kidney 25.0
    Hog, meat 0.25
    Hog, meat byproducts, except kidney 3.0
    Horse, fat 0.3
    Horse, kidney 25.0
    Horse, meat 0.25
    Horse, meat byproducts, except kidney 3.0
    Milk 0.2
    Sheep, fat 0.3
    Sheep, kidney 25.0
    Sheep, meat 0.25
    Sheep, meat byproducts, except kidney 3.0

    (3) Tolerances are established for residues of the herbicide dicamba, 3,6-dichloro-o-anisic acid, including its metabolites and degradates, in or on the commodities in the table below. Compliance with the tolerance levels is to be determined by measuring only the residues of dicamba, 3,6-dichloro-o-anisic acid, and its metabolites, 3,6-dichloro-5-hydroxy-o-anisic acid, and 3,6-dichloro-2-hydroxybenzoic acid, calculated as the stoichiometric equivalent of dicamba, in or on the following commodities:

    Commodity Parts per million
    Cotton, gin byproducts 70
    Cotton, undelinted seed 3.0
    Grain, aspirated fractions 1000
    Soybean, forage 60
    Soybean, hay 100
    Soybean, hulls 30.0
    Soybean, seed 10.0

    (b) Section 18 emergency exemptions. [Reserved]

    (c) Tolerances with regional registrations. [Reserved]

    (d) Indirect or inadvertent residues. [Reserved]

    [65 FR 33709, May 24, 2000, as amended at 72 FR 35665, June 29, 2007; 73 FR 17918, Apr. 2, 2008; 73 FR 54960, Sept. 24, 2008; 75 FR 60241, Sept. 29, 2010; 76 FR 55806, Sept. 9, 2011; 81 FR 88634, Dec. 8, 2016]