40 CFR § 180.673 - Triforine; tolerances for residues.

---
identifier: "/us/cfr/t40/s180.673"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 180.673 - Triforine; tolerances for residues."
title_number: 40
title_name: "Protection of Environment"
section_number: "180.673"
section_name: "Triforine; 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"
---


# 180.673 Triforine; tolerances for residues.

(a) *General.* Tolerances are established for residues of triforine, including its metabolites and degradates. Compliance with the tolerance levels specified in the following table is to be determined by measuring only triforine (*N,N′*-[1,2-piperazinediylbis(2,2,2-trichloroehylidene)]bis[formamide]), in or on the following commodities.

| Commodity | Parts permillion |
| --- | --- |
| Blueberry | 1.0 |
| Tomato | 0.5 |
| There are no U.S. registrations for blueberry and tomato. |  |

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

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

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

[78 FR 32151, May 29, 2013. Redesignated at 78 FR 36677, June 19, 2013]