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§ 180.590 2, 6-Diisopropylnaphthalene (2, 6-DIPN); tolerances for residues.

40 CFR 180.590

Citation40 CFR 180.590
CorpusDaily eCFR
Displayed edition2026-09-17
Last updated2026-09-17

§ 180.590 2, 6-Diisopropylnaphthalene (2, 6-DIPN); tolerances for residues.

(a) General. Tolerances are established for residues of the growth inhibitor 2,6-DIPN, including its metabolites and degradates, in or on the commodities in the following table. Compliance with the tolerance levels specified in the following table is to be determined by measuring only 2,6-Diisopropylnaphthalene.

CommodityParts per million
Cattle, fat0.2
Cattle, meat0.02
Cattle, meat byproducts, except fat0.02
Goat, fat0.2
Goat, meat0.02
Goat, meat byproducts, except fat0.02
Horse, fat0.2
Horse, meat0.02
Horse, meat byproducts, except fat0.02
Milk, fat0.02
Potato, granules/flakes5.5
Potato, wet peel6.0
Potato, whole2.0
Sheep, fat0.2
Sheep, meat0.02
Sheep, meat byproducts, except fat0.02

(b) Section 18 emergency exemptions. [Reserved]

(c) Tolerances with regional registrations. [Reserved]

(d) Indirect or inadvertent residues. [Reserved]

[71 FR 52011, Sept. 1, 2006, as amended at 74 FR 66579, Dec. 16, 2009; 77 FR 32406, June 1, 2012]