[Code of Federal Regulations]
[Title 40, Volume 22]
[Revised as of July 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR180.127]

[Page 352-354]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 180_TOLERANCES AND EXEMPTIONS FROM TOLERANCES FOR PESTICIDE CHEMICALS 
IN FOOD--Table of Contents
 
                      Subpart C_Specific Tolerances
 
Sec. 180.127  Piperonyl butoxide; tolerances for residues.

    (a) General. (1) Tolerances for residues of the insecticide 
piperonyl butoxide [(butyl carbityl)(6-propyl piperonyl)ether] are 
established in or on the following food commodities:

------------------------------------------------------------------------
                                                               Parts per
                          Commodity                             million
------------------------------------------------------------------------
Almond, postharvest..........................................   8
Apple, postharvest...........................................   8
Barley, postharvest..........................................  20
Bean, postharvest............................................   8
Birdseed, mixtures, postharvest..............................  20
Blackberry, postharvest......................................   8
Blueberry (huckleberry), postharvest.........................   8
Boysenberry, postharvest.....................................   8
Buckwheat, grain, postharvest................................  20
Cattle, fat..................................................   0.1(N)
Cattle, meat byproducts......................................   0.1(N)
Cattle, meat.................................................   0.1(N)
Cherry, postharvest..........................................   8
Cocoa bean, postharvest......................................   8
Coconut, copra, postharvest..................................   8

[[Page 353]]


Corn (including popcorn), postharvest........................  20
Cottonseed, postharvest......................................   8
Crabapple, postharvest.......................................   8
Currant, postharvest.........................................   8
Dewberry, postharvest........................................   8
Egg..........................................................   1
Fig, postharvest.............................................   8
Flaxseed, postharvest........................................   8
Goat, fat....................................................   0.1(N)
Goat, meat byproducts........................................   0.1(N)
Goat, meat...................................................   0.1(N)
Gooseberry, postharvest......................................   8
Grape, postharvest...........................................   8
Guava, postharvest...........................................   8
Hog, fat.....................................................   0.1(N)
Hog, meat byproducts.........................................   0.1(N)
Hog, meat....................................................   0.1(N)
Horse, fat...................................................   0.1(N)
Horse, meat byproducts.......................................   0.1(N)
Horse, meat..................................................   0.1(N)
Loganberry, postharvest......................................   8
Mango, postharvest...........................................   8
Milk fat (reflecting negligible residues in milk)............   0.25
Muskmelon, postharvest.......................................   8
Oat, postharvest.............................................   8
Oranges, postharvest.........................................   8
Peach, postharvest...........................................   8
Peanut (with shell removed), postharvest.....................   8
Pear, postharvest............................................   8
Pea, postharvest.............................................   8
Pineapple, postharvest.......................................   8
Plum, prune, fresh, postharvest..............................   8
Potato, postharvest..........................................   0.25
Poultry, fat.................................................   3
Poultry, meat byproducts.....................................   3
Poultry, meat................................................   3
Raspberry, postharvest.......................................   8
Rice, postharvest............................................  20
Rye, postharvest.............................................  20
Sheep, fat...................................................   0.1(N)
Sheep, meat byproducts.......................................   0.1(N)
Sheep, meat..................................................   0.1(N)
Sorghum, grain, postharvest..................................   8
Sweet potato, postharvest....................................   0.25
Tomato, postharvest..........................................   8
Walnut, postharvest..........................................   8
Wheat, postharvest...........................................  20
------------------------------------------------------------------------

    (2) Piperonyl butoxide may be safely used in accordance with the 
following prescribed conditions:
    (i) It is used or intended for use in combination with pyrethrins 
for control of insects:
    (A) In cereal grain mills and in storage areas for milled cereal 
grain products, whereby the amount of piperonyl butoxide is at least 
equal to but not more than 10 times the amount of pyrethrins in the 
formulation.
    (B) On the outer ply of multiwall paper bags of 50 pounds or more 
capacity in amounts not exceeding 60 milligrams per square foot, whereby 
the amount of piperonyl butoxide is equal to 10 times the amount of 
pyrethrins in the formulation. Such treated bags are to beused only for 
dried foods.
    (C) On cotton bags of 50 pounds or more capacity in amounts not 
exceeding 55 milligrams per square foot of cloth, whereby the amount of 
piperonyl butoxide is equal to 10 times the amount of pyrethrins in the 
formulation. Such treated bags are constructed with waxed paperliners 
and are to be used only for dried foods that contain 4 percent fat or 
less.
    (D) In two-ply bags consisting of cellophane/polyolefin sheets bound 
together by an adhesive layer when it is incorporated in the adhesive. 
The treated sheets shall contain not more than 50 milligrams of 
piperonyl butoxide per square foot (538 milligrams per square meter). 
Such treated bags are to be used only for packaging prunes, raisins, and 
other dried fruit and are to have a maximum ratio of 3.12 milligrams of 
piperonyl butoxide per ounce of fruit (0.10milligram of piperonyl 
butoxide per gram of product).
    (E) In food processing and food storage areas: Provided, That the 
food is removed or covered prior to such use.
    (ii) It is used or intended for use in combination with pyrethrins 
and N-octylbicycloheptene dicarboximide for insect control in accordance 
with 21 CFR 178.3730.
    (iii) A tolerance of 10 parts per million is established for 
residues of piperonyl butoxide in or on:
    (A) Milled fractions derived from Grain, cereal when present therein 
as a result of its use in cereal grain mills and in storage areas for 
milled cereal grain products.
    (B) Dried foods when present as a result of migration from its use 
on the outer ply of multiwall paper bags of 50 pounds or more capacity.
    (C) Foods treated in accordance with 21 CFR 178.3730.
    (D) Dried foods that contain 4 percent fat, or less, when present as 
a result of migration from its use on the cloth of cotton bags of 50 
pounds or more capacity constructed with waxed paper liners.
    (E) Foods treated in accordance with paragraph (a)(2)(i)(D) and (E) 
of this section.
    (iv) To assure safe use of the pesticide, its label and labeling 
shall conform to that registered with the U.S.

[[Page 354]]

Environmental Protection Agency, and it shall be used in accordance with 
such label and labeling.
    (v) Where tolerances are established on both raw agricultural 
commodities and processed foods made therefrom, the total residues of 
piperonyl butoxide in or on the processed food shall not be greater than 
that permitted by the larger of the two tolerances.
    (3) Piperonyl butoxide may be safely used in accordance with the 
following prescribed conditions:
    (i) It is used or intended for use in combination with pyrethrins 
for control of insects:
    (A) On the outer ply of multiwall paper bags of 50 pounds or more 
capacity in amounts not exceeding 60 milligrams per square foot.
    (B) On cotton bags of 50 pounds or more capacity in amounts not 
exceeding 55 milligrams per square foot of cloth. Such treated bags are 
constructed with waxed paper liners and are to be used only for dried 
feeds that contain 4 percent fat or less.
    (ii) It is used in combination with pyrethrins, whereby the amount 
of piperonyl butoxide is equal to 10 times the amount of pyrethrins in 
the formulation. Such treated bags are to be used only for dried feeds.
    (iii) A tolerance of 10 parts per million is established for 
residues of piperonyl butoxide when present as the result of migration:
    (A) In or on dried feeds from its use on the outer ply of multiwall 
paper bags of 50 pounds or more capacity.
    (B) In or on dried feeds that contain 4 percent fat, or less, from 
its use on cotton bags of 50 pounds or more capacity constructed with 
waxed paper liners.
    (iv) To assure safe use of the pesticide, its label and labeling 
shall conform to that registered with the U.S. Environmental Protection 
Agency.
    (v) Where tolerances are established on both the raw agricultural 
commodities and processed foods made therefrom, the total residues of 
piperonyl butoxide in or on the processed food shall not be greater than 
that permitted by the larger of the two tolerances.
    (b) Section 18 emergency exemptions. [Reserved]
    (c) Tolerances with regional registrations. [Reserved]
    (d) Indirect or inadvertent residues. [Reserved]

[65 FR 33706, May 24, 2000]