40 CFR § 180.588 - Quinoxyfen; tolerances for residues.

---
identifier: "/us/cfr/t40/s180.588"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 180.588 - Quinoxyfen; tolerances for residues."
title_number: 40
title_name: "Protection of Environment"
section_number: "180.588"
section_name: "Quinoxyfen; 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"
---


# 180.588 Quinoxyfen; tolerances for residues.

(a) *General.* Tolerances are established for residues of the fungicide quinoxyfen, 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 quinoxyfen (5,7-dichloro-4-(4-fluorophenoxy)quinoline).

| Commodity | Parts per million |
| --- | --- |
| Artichoke, globe | 1.4 |
| Berry, low growing, subgroup 13-07G | 1.0 |
| Fruit, small vine climbing, except fuzzy kiwifruit, subgroup 13-07F | 2.0 |
| Fruit, stone, group 12 | 0.70 |
| Hop, dried cones | 3.0 |
| Gourd, edible | 0.20 |
| Lettuce, head | 7.0 |
| Lettuce, leaf | 19 |
| Melon, subgroup 9A | 0.08 |
| Pumpkin | 0.20 |
| Squash, winter | 0.20 |
| Vegetable, fruiting, group 8-10 | 1.7 |

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

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

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

[68 FR 55858, Sept. 29, 2003, as amended at 70 FR 4032, Jan. 28, 2005; 71 FR 50354, Aug. 25, 2006; 74 FR 14743, Apr. 1, 2009; 78 FR 57280, Sept. 18, 2013]