40 CFR 180.316: Pyrazon; tolerances for residues.

(a) General. Tolerances are established for combined residues of the herbicide pyrazon (5-amino-4-chloro-2-phenyl-3(2H)-pyridazinone) and its metabolites (calculated as pyrazon) in or on the commodities in Table 1 to paragraph (a).

Table 1 to Paragraph (a)

Commodity Parts per million

Beet, garden, roots 1 0.9

Beet, garden, tops 1 7

Beet, sugar, molasses 1 1.5

Beet, sugar, roots 1 0.2

Beet, sugar, tops 1 3

Cattle, fat 1 0.1

Cattle, liver 1 0.15

Cattle, meat 1 0.1

Cattle, meat byproducts, except liver 1 0.1

Goat, fat 1 0.1

Goat, liver 1 0.15

Goat, meat 1 0.1

Goat, meat byproducts, except liver 1 0.1

Horse, fat 1 0.1

Horse, liver 1 0.15

Horse, meat 1 0.1

Horse, meat byproducts, except liver 1 0.1

Milk 1 0.02

Sheep, fat 1 0.1

Sheep, liver 1 0.15

Sheep, meat 1 0.1

Sheep, meat byproducts, except liver 1 0.1

1 There are no U.S. registrations. This tolerance expires on August 26, 2026.

(b)-(c) [Reserved]

(d) Indirect or inadvertent residues. Tolerances are established for combined residues of the herbicide pyrazon, 5-amino-4-chloro-2-phenyl-3(2H)-pyridazinone, and its metabolites (calculated as pyrazon), in or on the commodities in Table 2 to paragraph (d).

Table 2 to Paragraph (d)

Commodity Parts per million

Corn, field, forage 1 0.5

Corn, field, stover 1 0.5

Soybean, forage 1 0.5

Soybean, hay 1 0.5

Wheat, forage 1 0.3

Wheat, hay 1 0.2

Wheat, straw 1 0.1

1 There are no U.S. registrations. This tolerance expires on August 26, 2026.