40 CFR § 180.370 - 5-Ethoxy-3-(trichloromethyl)-1,2,4-thiadiazole; tolerances for residues.

---
identifier: "/us/cfr/t40/s180.370"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 180.370 - 5-Ethoxy-3-(trichloromethyl)-1,2,4-thiadiazole; tolerances for residues."
title_number: 40
title_name: "Protection of Environment"
section_number: "180.370"
section_name: "5-Ethoxy-3-(trichloromethyl)-1,2,4-thiadiazole; 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"
---


# 180.370 5-Ethoxy-3-(trichloromethyl)-1,2,4-thiadiazole; tolerances for residues.

(a) *General.* Tolerances are established for residues of the fungicide etridiazole, including its metabolites and degradates, in or on the commodities in table 1 to this paragraph (a). Compliance with the tolerance levels is to be determined by measuring only the residues of etridiazole, (5-ethoxy-3-(trichloromethyl)-1,2,4-thiadiazole), and its metabolite etridiazole acid, (3-carboxy-5-ethoxy-1,2,4-thiadiazole), calculated as the stoichiometric equivalent of etridiazole, in or on the commodity:

Table 1 to Paragraph (**a**)

| Commodity | Parts per million |
| --- | --- |
| Cotton, gin byproducts | 0.1 |
| Cotton, undelinted seed | 0.1 |
| Tomato | 0.15 |
| Tomato | 0.1 |
| This tolerance expires on August 19, 2026. |  |

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

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

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

[47 FR 49845, Nov. 3, 1982, as amended at 48 FR 12088, Mar. 23, 1983; 63 FR 57076, Oct. 26, 1998; 72 FR 41931, Aug. 1, 2007; 73 FR 54961, Sept. 24, 2008; 81 FR 34905, June 1, 2016; 91 FR 8107, Feb. 20, 2026]