Title 40

SECTION 180.491

180.491 Propylene oxide; tolerances for residues.

§ 180.491 Propylene oxide; tolerances for residues.

(a) General. (1) Tolerances are established for residues of the fumigant propylene oxide, including its metabolites and degradates, in or on the commodities in the table in this paragraph. Compliance with the tolerance levels specified in this paragraph is to be determined by measuring only propylene oxide, when used as a postharvest fumigant, in or on the commodity.

Commodity Parts per
million
Cacao bean, cocoa powder 200
Cacao bean, dried bean 200
Fig 3.0
Garlic, dried 300
Grape, raisin 1.0
Herbs and spices, group 19, dried 300
Nut, pine 300
Nut, tree, group 14 300
Nutmeat, processed, except peanuts 300
Onion, dried 300
Pistachio 300
Plum, prune, dried 2.0

(2) Tolerances are established for residues of the reaction product, propylene chlorohydrin, including its metabolites and degradates, in or on the commodities in the table in this paragraph. Compliance with the tolerance levels specified in this paragraph is to be determined by measuring only the sum of propylene chlorohydrin (1-chloro-2-propanol), and its isomer 2-chloro-1-propanol, calculated as the stoichiometric equivalent of propylene chlorohydrin (1-chloro-2-propanol), that results from the use of propylene oxide as a postharvest fumigant, in or on the commodity.

Commodity Parts per
million
Basil, dried leaves 6000
Cacao bean, cocoa powder 20.0
Cacao bean, dried bean 20.0
Fig 3.0
Garlic, dried 6000
Grape, raisin 4.0
Herbs and spices, group 19, dried, except basil 1500
Nut, pine 10.0
Nut, tree, group 14 10.0
Nutmeat, processed, except peanuts 10.0
Onion, dried 6000
Pistachio 10.0
Plum, prune, dried 2.0

(b) Section 18 emergency exemptions. [Reserved]

(c) Tolerances with regional registrations. [Reserved]

(d) Indirect or inadvertent residues. [Reserved]

[65 FR 33702, May 24, 2000, as amended at 68 FR 39430, July 1, 2003; 72 FR 49651, Aug. 29, 2007; 73 FR 54963, Sept. 24, 2008; 76 FR 38037, June 29, 2011; 77 FR 28495, May 15, 2012]