40 CFR § 180.596 - Fosthiazate; tolerances for residues.

---
identifier: "/us/cfr/t40/s180.596"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 180.596 - Fosthiazate; tolerances for residues."
title_number: 40
title_name: "Protection of Environment"
section_number: "180.596"
section_name: "Fosthiazate; 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"
---


# 180.596 Fosthiazate; tolerances for residues.

(a) *General.* A tolerance is established for residues of the insecticide fosthiazate, including its metabolites and degradates, in or on the commodity in the table in this paragraph. Compliance with the tolerance level specified in this paragraph is to be determined by measuring only the sum of fosthiazate, *O*-ethyl *S*-(1-methylpropyl)(2-oxo-3-thiazolidinyl)phosphonothioate, and its metabolite, *O*-ethyl *S*-(1-methylpropyl)(2-(methylsulfonyl)ethyl)phosphoramidothioate, calculated as the stoichiometric equivalent of fosthiazate, in or on the commodity.

| Commodity | Parts per million |
| --- | --- |
| Tomato | 0.02 |

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

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

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

[69 FR 18275, Apr. 7, 2004, as amended at 76 FR 23498, Apr. 27, 2011]