40 CFR § 180.674 - Proquinazid; tolerances for residues.

---
identifier: "/us/cfr/t40/s180.674"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 180.674 - Proquinazid; tolerances for residues."
title_number: 40
title_name: "Protection of Environment"
section_number: "180.674"
section_name: "Proquinazid; 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"
---


# 180.674 Proquinazid; tolerances for residues.

(a) *General.* Tolerances are established for residues of the fungicide, proquinazid, including its metabolites and degradates, in or on the commodities listed in the following table. Compliance with the tolerance levels specified in the following table is to be determined by measuring only proquinazid, [6-Iodo-2-propoxy-3-propyl-3H-quinazolin-4-one), in or on the following commodities:

| Commodity | Parts permillion |
| --- | --- |
| Grape | 0.50 |
| Grape, raisin | 1.0 |
| No U.S. registrations for Proquinazid. |  |

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

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

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

[79 FR 18815, Apr. 4, 2014]