40 CFR § 180.493 - Dimethomorph; tolerances for residues.

---
identifier: "/us/cfr/t40/s180.493"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 180.493 - Dimethomorph; tolerances for residues."
title_number: 40
title_name: "Protection of Environment"
section_number: "180.493"
section_name: "Dimethomorph; 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"
---


# 180.493 Dimethomorph; tolerances for residues.

(a) *General.* Tolerances are established for residues of the fungicide dimethomorph, 4-[3-(4-chlorophenyl)-3-(3,4-dimethoxyphenyl)-1-oxo-2-propen-1-yl]morpholine, including its metabolites and degradates, in or on the commodities in the following table. Compliance with the tolerance levels specified in the following table is to be determined by measuring only dimethomorph in or on the commodities.

| Commodity | Parts per million |
| --- | --- |
| Brassica, head and stem, subgroup 5A | 6.0 |
| Brassica, leafy greens, subgroup 5B | 30.0 |
| Ginseng | 0.90 |
| Grape | 3.0 |
| Grape, raisin | 7.0 |
| Hop, dried cones | 60 |
| Onion, bulb, subgroup 3-07A | 0.6 |
| Onion, green, subgroup 3-07B | 15.0 |
| Papaya | 1.5 |
| Potato | 0.05 |
| Potato, wet peel | 0.20 |
| Strawberry | 0.90 |
| Taro, corm | 0.5 |
| Taro, leaves | 6.0 |
| Turnip, greens | 20.0 |
| Vegetable, cucurbit, group 9 | 0.5 |
| Vegetable, fruiting, group 8 | 1.5 |
| Vegetable, leafy (except Brassica) group 4 | 30.0 |
| There are no U.S. registrations as of January 20, 2015. |  |

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

(c) *Tolerances with regional registrations.* Tolerances with regional registrations are established for residues of the fungicide dimethomorph, 4-[3-(4-chlorophenyl)-3-(3,4-dimethoxyphenyl)-1-oxo-2-propen-1-yl]morpholine, including its metabolites and degradates, in or on the commodities in the following table. Compliance with the tolerance levels specified in the following table is to be determined by measuring only dimethomorph in or on the commodity.

| Commodity | Parts per million |
| --- | --- |
| Bean, lima, succulent | 0.60 |

(d) *Indirect or inadvertent residues.* Tolerances are established for the indirect or inadvertent residues of the fungicide dimethomorph, 4-[3-(4-chlorophenyl)-3-(3,4-dimethoxyphenyl)-1-oxo-2-propen-1-yl]morpholine, including its metabolites and degradates, in or on the commodities in the following table. Compliance with the tolerance levels specified in the following table is to be determined by measuring only dimethomorph in or on the commodity.

| Commodity | Parts per million |
| --- | --- |
| Wheat, forage | 0.15 |
| Wheat, hay | 0.15 |
| Wheat, straw | 0.4 |

[62 FR 26416, May 14, 1997]

For  citations affecting § 180.493, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at