Section 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, forage | 0.2 |
| Alfalfa, hay | 0.2 |
| Barley, grain | 0.05 |
| Barley, hay | 0.2 |
| Barley, straw | 0.2 |
| Bean, dry, seed | 0.05 |
| Beet, sugar, roots | 0.05 |
| Beet, sugar, tops | 0.2 |
| Grape | 0.01 |
| Grass, rangeland, forage | 0.1 |
| Grass, rangeland, hay | 0.1 |
| Potato | 0.05 |
| Sugarcane, cane | 0.01 |
| Timothy, hay | 0.5 |
| Timothy, forage | 0.5 |
| Wheat, forage | 0.05 |
| Wheat, grain | 0.05 |
| Wheat, hay | 0.05 |
| Wheat, straw | 0.05 |
(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, globe | 0.01 |
| Beet, sugar, roots | 0.04 |
| Beet, sugar, tops | 0.02 |
(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