40 CFR § 180.660 - Pyriofenone; tolerances for residues.

---
identifier: "/us/cfr/t40/s180.660"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 180.660 - Pyriofenone; tolerances for residues."
title_number: 40
title_name: "Protection of Environment"
section_number: "180.660"
section_name: "Pyriofenone; 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"
---


# 180.660 Pyriofenone; tolerances for residues.

(a) *General.* Tolerances are established for residues of the fungicide pyriofenone, including its metabolites and degradates, in or on the following commodities listed in the table. Compliance with the tolerance levels specified in the table is to be determined by measuring only pyriofenone, (5-chloro-2-methoxy-4-methyl-3-pyridinyl)(2,3,4-trimethoxy-6-methylphenyl) methanone, in or on the following commodities:

Table 1 to Paragraph (**a**)

| Commodity | Parts permillion |
| --- | --- |
| Apple | 0.3 |
| Apple, wet pomace | 0.5 |
| Berry, low growing, subgroup 13-07G, except cranberry | 2 |
| Bushberry subgroup 13-07B | 1.5 |
| Caneberry subgroup 13-07A | 0.90 |
| Cherry subgroup 12-12A | 1.5 |
| Fruit, small vine climbing subgroup 13-07E, except grape | 1.5 |
| Grape | 0.8 |
| Grape, raisin | 2.5 |
| Pepper/eggplant subgroup 8-10B | 2 |
| Tomato subgroup 8-10A | 0.2 |
| Tomato subgroup 8-10A | 0.3 |
| Vegetables, cucurbit, crop group 9 | 0.30 |
| This tolerance expires on January 5, 2023. |  |

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

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

(d) *Indirect or inadvertent residues.* [Reserved]

[77 FR 13506, Mar. 7, 2012, as amended at 82 FR 18240, Apr. 18, 2017; 84 FR 24987, May 30, 2019; 86 FR 17548, Apr. 5, 2021; 87 FR 39755, July 5, 2022; 91 FR 1396, Jan. 14, 2026]