40 CFR § 180.615 - Amicarbazone; tolerances for residues.

---
identifier: "/us/cfr/t40/s180.615"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 180.615 - Amicarbazone; tolerances for residues."
title_number: 40
title_name: "Protection of Environment"
section_number: "180.615"
section_name: "Amicarbazone; tolerances for residues."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "E"
subchapter_name: "PESTICIDE PROGRAMS"
part_number: "180"
part_name: "TOLERANCES AND EXEMPTIONS FOR PESTICIDE CHEMICAL RESIDUES IN FOOD"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 321(q), 346a and 371."
regulatory_source: "36 FR 22540, Nov. 25, 1971, unless otherwise noted."
cfr_part: "180"
---


# 180.615 Amicarbazone; tolerances for residues.

(a) *General.* Tolerances are established for combined residues of the herbicide, amicarbazone [4-amino-4, 5-dihydro- N-(1,1-dimethylethyl)-3-(1-methylethyl)-5-oxo-1H-1,2,4-triazole-1-carboxamide] and its metabolites DA amicarbazone [N-(1,1-dimethylethyl)-4,5-dihydro-3-(1-methylethyl)-5-oxo-1H-1,2,4-triazole-1-carboxamide] and iPr-2-OH DA amicarbazone [N-(1,1-dimethylethyl)-4,5-dihydro-3-(1-hydroxy-1-methylethyl)-5-oxo-1H-1,2,4-triazole-1-carboxamide], calculated as parent equivalents, in or on the following commodities:

Table 1 to Paragraph (**a**)

| Commodity | Parts per million |
| --- | --- |
| Cattle, fat | 0.01 |
| Cattle, liver | 1.0 |
| Cattle, meat | 0.01 |
| Cattle, meat byproducts, except liver | 0.10 |
| Corn, field, forage | 0.80 |
| Corn, field, grain | 0.05 |
| Corn, field, stover | 1.0 |
| Goat, fat | 0.01 |
| Goat, liver | 1.0 |
| Goat, meat | 0.01 |
| Goat, meat byproducts, except liver | 0.10 |
| Hog, fat | 0.01 |
| Hog, liver | 0.10 |
| Hog, meat | 0.01 |
| Hog, meat byproducts, except liver | 0.01 |
| Horse, fat | 0.01 |
| Horse, liver | 1.0 |
| Horse, meat | 0.01 |
| Horse, meat byproducts, except liver | 0.10 |
| Milk | 0.01 |
| Poultry, liver | 0.10 |
| Sheep, fat | 0.01 |
| Sheep, liver | 1.0 |
| Sheep, meat | 0.01 |
| Sheep, meat byproducts, except liver | 0.10 |
| Sugarcane, cane | 0.2 |
| Sugarcane, molasses | 0.5 |
| There are no current U.S. registrations |  |

(b) *Section 18 emergency exemptions.* [Reserved]

(c) *Tolerances with regional registrations.* [Reserved]

(d) *Indirect or inadvertent residues.* Tolerances are established for the indirect or inadvertent residues of amicarbazone [4-amino-4, 5-dihydro-N-(1,1-dimethylethyl)-3-(1-methylethyl)-5-oxo-1H-1,2,4-triazole-1-carboxamide] and its metabolites DA amicarbazone [N-(1,1-dimethylethyl)-4,5-dihydro-3-(1-methylethyl)-5-oxo-1H-1,2,4-triazole-1-carboxamide] and iPr-2-OH DA amicarbazone [N-(1,1-dimethylethyl)-4,5-dihydro-3-(1-hydroxy-1-methylethyl)-5-oxo-1H-1,2,4-triazole-1-carboxamide], calculated as parent equivalents, in or on the following commodities when present therein as a result of application of amicarbazone to the growing crops in paragraph (a) of this section:

| Commodity | Parts per million |
| --- | --- |
| Alfalfa, forage | 0.05 |
| Alfalfa, hay | 0.10 |
| Cotton, gin byproducts | 0.30 |
| Cotton, undelinted seed | 0.07 |
| Soybean, forage | 1.50 |
| Soybean, hay | 5.0 |
| Soybean, seed | 0.80 |
| Wheat, bran | 0.15 |
| Wheat, flour | 0.15 |
| Wheat, forage | 0.50 |
| Wheat, germ | 0.15 |
| Wheat, grain | 0.10 |
| Wheat, hay | 1.0 |
| Wheat, middlings, | 0.15 |
| Wheat, shorts | 0.15 |
| Wheat, straw | 0.50 |

[70 FR 55760, Sept. 23, 2005, as amended at 74 FR 46377, Sept. 9, 2009; 90 FR 47239, Oct. 1, 2025]