Regulations last checked for updates: May 18, 2024

Title 40 - Protection of Environment last revised: May 16, 2024
§ 180.284 - Zinc phosphide; tolerances for residues.

(a) General. Tolerances are established for residues of the phosphine resulting from the use of the rodenticide zinc phosphide in or on the raw agricultural commodities as follows:

Commodity Parts per million
Alfalfa, forage0.2
Alfalfa, hay0.2
Barley, grain0.05
Barley, hay0.2
Barley, straw0.2
Bean, dry, seed0.05
Beet, sugar, roots0.05
Beet, sugar, tops0.2
Grape0.01
Grass, rangeland, forage0.1
Grass, rangeland, hay0.1
Potato0.05
Sugarcane, cane0.01
Timothy, hay0.5
Timothy, forage0.5
Wheat, forage0.05
Wheat, grain0.05
Wheat, hay0.05
Wheat, straw0.05

(b) Section 18 emergency exemptions. [Reserved]

(c) Tolerances with regional registrations. Tolerances with regional registration, as defined in § 180.1(l), are established for residues of phosphine resulting from the use of the rodenticide zinc phosphide in or on the following raw agricultural commodities as follows:

Commodity Parts per million
Artichoke, globe0.01
Beet, sugar, roots0.04
Beet, sugar, tops0.02

(d) Indirect or inadvertent residues. [Reserved]

[63 FR 45182, Aug. 25, 1998, as amended at 63 FR 67799, Dec. 9, 1998; 64 FR 40772, July 28, 1999; 64 FR 61791, Nov. 15, 1999; 65 FR 8874, Feb. 23, 2000; 65 FR 49941, Aug. 16, 2000; 65 FR 62634, Oct. 19, 2000; 66 FR 64773, Dec. 14, 2001; 68 FR 2247, Jan. 16, 2003; 68 FR 56195, Sept. 30, 2003; 70 FR 7046, Feb. 10, 2005; 74 FR 46373, Sept. 9, 2009; 76 FR 34885, June 15, 2011]
authority: 21 U.S.C. 321(q), 346a and 371
source: 36 FR 22540, Nov. 25, 1971, unless otherwise noted.
cite as: 40 CFR 180.284