40 CFR § 180.419 - Chlorpyrifos-methyl; tolerances for residues.

---
identifier: "/us/cfr/t40/s180.419"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 180.419 - Chlorpyrifos-methyl; tolerances for residues."
title_number: 40
title_name: "Protection of Environment"
section_number: "180.419"
section_name: "Chlorpyrifos-methyl; 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"
---


# 180.419 Chlorpyrifos-methyl; tolerances for residues.

(a) *General.* (1) Tolerances are established for the combined residues of the insecticide chlorpyrifos-methyl [*O,-O,-*dimethyl *O*-(3,5,6-trichloro-2-pyridyl)] phosphorothioate and its metabolite (3,5,6-trichloro-2-pyridinol) in or on the following food commodities:

| Commodity | Parts per million |
| --- | --- |
| Barley, grain | 6.0 |
| Cattle, fat | 0.5 |
| Cattle, meat | 0.5 |
| Cattle, meat byproducts | 0.5 |
| Egg | 0.1 |
| Goat, fat | 0.5 |
| Goat, meat | 0.5 |
| Goat, meat byproducts | 0.5 |
| Hog, fat | 0.5 |
| Hog, meat | 0.5 |
| Hog, meat byproducts | 0.5 |
| Horse, fat | 0.5 |
| Horse, meat | 0.5 |
| Horse, meat byproducts | 0.5 |
| Milk, fat (0.05 ppm (N) in whole milk | 1.25 |
| Oat, grain | 6.0 |
| Poultry, fat | 0.5 |
| Poultry, meat | .5 |
| Poultry, meat byproducts | .5 |
| Rice, grain | 6.0 |
| Sheep, fat | 0.5 |
| Sheep, meat | 0.5 |
| Sheep, meat byproducts | 0.5 |
| Sorghum, grain | 6.0 |
| Wheat, grain | 6.0 |

(2) Tolerances are established for the combined residues of the insecticide chlorpyrifos-methyl (*O,-O-* dimethyl-*O-*(3,5,6-trichloro-2-pyridyl) phosphorothioate and its metabolite (3,5,6-trichloro-2-pyridinol) in or on the following food commodities when present therein as a result of application to stored grains:

| Commodity | Parts per million |
| --- | --- |
| Barley, bran | 90 |
| Barley, pearled barley | 90 |
| Rice, bran | 30 |
| Rice, hulls | 30 |
| Rice, polished rice | 30 |
| Sorghum, grain, bran | 90 |
| Wheat, bran | 30 |
| Wheat, germ | 30 |
| Wheat, middlings | 30 |
| Wheat, shorts | 30 |

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

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

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

[65 FR 33715, May 24, 2000, as amended at 74 FR 46374, Sept. 9, 2009]