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

(a) General. (1) Time-limited tolerances are established for combined residues of 2,6-DIPN, including its metabolites and degradates, in or on the commodities in the table below as a result of the post-harvest application of 2,6-DIPN to potatoes, when 2,6-DIPN is used in accordance with good agricultural practices. Compliance with the tolerance levels specified below is to be determined by measuring only 2,6-DIPN in or on the commodities.
Commodity Parts per million Expiration/revocation date
Potato, granules/flakes 5.5 5/18/12
Potato, wet peel 6.0 5/18/12
Potato, whole 2.0 5/18/12
(2) Time-limited tolerances are established for combined residues of 2,6-DIPN, including its metabolites and degradates, in or on the commodities in the table below as a result of the post-harvest application of 2,6-DIPN to potatoes, when 2,6-DIPN is used in accordance with good agricultural practices. Compliance with the tolerance levels specified below is to be determined by measuring only 2,6-DIPN and the metabolites M14, M19, M27, and M29 in or on the commodities.
Commodity Parts per million Revocation/expiration date
Cattle, fat 1.0 5/18/12
Cattle, liver 0.5 5/18/12
Cattle, meat 0.2 5/18/12
Cattle, meat byproducts 0.4 5/18/12
Goat, fat 1.0 5/18/12
Goat, liver 0.5 5/18/12
Goat, meat 0.2 5/18/12
Goat, meat byproducts 0.4 5/18/12
Hog, fat 1.0 5/18/12
Hog, liver 0.5 5/18/12
Hog, meat 0.2 5/18/12
Hog, meat byproducts 0.4 5/18/12
Horse, fat 1.0 5/18/12
Horse, liver 0.5 5/18/12
Horse, meat 0.2 5/18/12
Horse, meat byproducts 0.4 5/18/12
Milk, fat 0.5 5/18/12
Sheep, fat 1.0 5/18/12
Sheep, liver 0.5 5/18/12
Sheep, meat 0.2 5/18/12
Sheep, meat byproducts 0.4 5/18/12
(b) emergency exemptions. [Reserved]
(c) Tolerances with regional registrations. [Reserved]
(d) Indirect or inadvertent residues. [Reserved]

Code of Federal Regulations

[71 FR 52011, Sept. 1, 2006, as amended at 74 FR 66579, Dec. 16, 2009]