(a) General. (1) Tolerances are established for residues of cyromazine, 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 cyromazine, N-cyclopropyl-1,3,5-triazine-2,4,6-triamine.

Table 1 to Paragraph (a)(1)

Commodity Parts per million
Bean, dry, except cowpea3
Bean, lima1
Bean, succulent2
Brassica, leafy greens, subgroup 4-16B35
Broccoli1
Cattle, fat0.05
Cattle, meat0.3
Cattle, meat byproducts0.3
Celtuce10
Chickpea, edible podded0.4
Chickpea, succulent shelled0.3
Dwarf pea, edible podded0.4
Edible podded pea, edible podded0.4
Egg0.3
English pea, succulent shelled0.3
Fennel, Florence, fresh leaves and stalk10
Garden pea, succulent shelled0.3
Goat, fat0.05
Goat, meat0.3
Goat, meat byproducts0.3
Grass-pea, edible podded0.4
Green pea, edible podded0.4
Green pea, succulent shelled0.3
Hog, fat0.05
Hog, meat0.3
Hog, meat byproducts0.3
Horse, fat0.05
Horse, meat0.3
Horse, meat byproducts0.3
Kohlrabi35
Leaf petiole vegetable subgroup 22B10
Leafy greens subgroup 4-16A10
Lentil, edible podded0.4
Lentil, succulent shelled0.3
Mango 10.5
Milk0.1
Mushroom8
Onion, bulb, subgroup 3-07A0.3
Onion, green, subgroup 3-07B3
Pepper/eggplant subgroup 8-10B3
Pigeon pea, edible podded0.4
Pigeon pea, succulent shelled0.3
Poultry, fat (from chicken layer hens and chicken breeder hens only)0.05
Poultry, meat (from chicken layer hens and chicken breeder hens only)0.1
Poultry, meat byproducts (from chicken layer hens and chicken breeder hens only)0.2
Sheep, fat0.05
Sheep, meat0.3
Sheep, meat byproducts0.3
Snap pea, edible podded0.4
Snow pea, edible podded0.4
Sugar snap pea, edible podded0.4
Tomato subgroup 8-10A1
Vegetable, brassica, head and stem, group 5-16, except broccoli35
Vegetable, cucurbit, group 92
Vegetable, tuberous and corm, subgroup 1C0.8

1There are no U.S. registrations on mango as of May 4, 2000.

2 This tolerance expires on April 7, 2020.

(2) A tolerance of 5.0 parts per million is established for residues of the insecticide cyromazine, including its metabolites and degradates, in or on poultry feed when used as a feed additive only in feed for chicken layer hens and chicken breeder hens at the rate of not more than 0.01 pound of cyromazine per ton of poultry feed for control of flies in manure of treated chicken layer hens and chicken breeder hens, provided the feeding of cyromazine-treated feed must stop at least 3 days (72 hours) before slaughter. If the feed is formulated by any person other than the end user, the formulator must inform the end user, in writing, of the 3-day (72 hours) pre-slaughter interval. Compliance with the tolerance level specified in this paragraph is to be determined by measuring only cyromazine, N-cyclopropyl-1,3,5-triazine-2,4,6-triamine, in or on the commodity.

(b) Section 18 emergency exemptions. [Reserved]

(c) Tolerances with regional registrations. [Reserved]

(d) Indirect or inadvertent residues. (1) Tolerances are established for indirect or inadvertent residues of the insecticide cyromazine, including its metabolites and degradates, in or on the commodities in table 1 to this paragraph (d)(1) when present therein as a result of the application of cyromazine to growing crops listed in paragraph (a)(1) of this section. Compliance with the tolerance levels specified in this paragraph (d)(1) is to be determined by measuring only cyromazine, N-cyclopropyl-1,3,5-triazine-2,4,6-triamine, in or on the commodity.

Table 2 to Paragraph (d)(1)

Commodity Parts per million
Cotton, undelinted seed0.1
Corn, sweet, kernel plus cob with husks removed0.5
Corn, sweet, forage0.5
Corn, sweet, stover0.5
Radish, roots0.5
Radish, tops0.5

(2) Tolerances are established for indirect or inadvertent residues of the insecticide cyromazine, including its metabolites and degradates, in or on the commodities in the table 3 to this paragraph (d)(2) when present therein as a result of the application of poultry manure-based fertilizer containing cyromazine to soil in which the crops identified in this section are grown. Compliance with the tolerance levels specified in this paragraph (d)(2) is to be determined by measuring only cyromazine, N-cyclopropyl-1,3,5-triazine-2,4,6-triamine, in or on the commodity.

Table 3 to Paragraph (d)(2)

CommodityParts per million
Grain, cereal, forage, fodder and straw, group 160.6
Grain, cereal, group 150.6
Herbs and spices, group 190.6
Oilseed, group 200.6
Onion, bulb, subgroup 3-07A0.6
Strawberry0.6
Vegetable, foliage of legume, group 70.6
Vegetable, fruiting, group 8-100.6
Vegetable, leaves of root and tuber, group 20.6
Vegetable, legume, group 60.6
Vegetable, root and tuber, group 10.6
[65 FR 25860, May 4, 2000, as amended at 67 FR 72593, Dec. 6, 2002; 68 FR 55269, Sept. 24, 2003; 75 FR 22256, Apr. 28, 2010; 76 FR 23494, Apr. 27, 2011; 84 FR 53322, Oct. 7, 2019; 88 FR 46084, July 19, 2023; 88 FR 56772, Aug. 21, 2023]