40 CFR § 180.252 - Tetrachlorvinphos; tolerances for residues.

---
identifier: "/us/cfr/t40/s180.252"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 180.252 - Tetrachlorvinphos; tolerances for residues."
title_number: 40
title_name: "Protection of Environment"
section_number: "180.252"
section_name: "Tetrachlorvinphos; 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"
---


# 180.252 Tetrachlorvinphos; tolerances for residues.

(a) *General.* Tolerances are established for the combined residues of the insecticide tetrachlorvinphos [(Z)-2-chloro-1-(2,4,5-trichlorophenyl) vinyl dimethyl phosphate], including its metabolites, 1-(2,4,5-trichlorophenyl)-ethanol (free and conjugated forms), 2,4,5-trichloroacetophenone, and 1-(2,4,5-trichlorophenyl)-ethanediol, in or on the following commodities:

| Commodity | Parts permillion |
| --- | --- |
| Cattle, fat (of which no more than 0.1 ppm is tetrachlorvinphos ) | 0.2 |
| Cattle, kidney (of which no more than 0.05 ppm is tetrachlorvinphos ) | 1.0 |
| Cattle, liver (of which no more than 0.05 ppm is tetrachlorvinphos ) | 0.5 |
| Cattle, meat (of which no more than 2.0 ppm is tetrachlorvinphos ) | 2.0 |
| Cattle, meat byproducts, except kidney and liver | 1.0 |
| Egg (of which no more than 0.05 ppm is tetrachlorvinphos ) | 0.2 |
| Hog, fat (of which no more than 0.1 ppm is tetrachlorvinphos ) | 0.2 |
| Hog, kidney (of which no more than 0.05 ppm is tetrachlorvinphos ) | 1.0 |
| Hog, liver (of which no more than 0.05 ppm is tetrachlorvinphos ) | 0.5 |
| Hog, meat (of which no more than 2.0 ppm is tetrachlorvinphos ) | 2.0 |
| Hog, meat byproducts, except kidney and liver | 1.0 |
| Milk, fat (reflecting negligible residues in whole milk and of which no more than 0.05 ppm is tetrachlorvinphos ) | 0.05 |
| Poultry, fat (of which no more than 7.0 ppm is tetrachlorvinphos ) | 7.0 |
| Poultry, liver (of which no more than 0.05 ppm is tetrachlorvinphos ) | 2.0 |
| Poultry, meat (of which no more than 3.0 ppm is tetrachlorvinphos ) | 3.0 |
| Poultry, meat byproducts, except liver | 2.0 |

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

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

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

[76 FR 57659, Sept. 16, 2011, as amended at 78 FR 15882, Mar. 13, 2013; 78 FR 53684, Aug. 30, 2013]