40 CFR § 180.181 - Chlorpropham; tolerances for residues.

---
identifier: "/us/cfr/t40/s180.181"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 180.181 - Chlorpropham; tolerances for residues."
title_number: 40
title_name: "Protection of Environment"
section_number: "180.181"
section_name: "Chlorpropham; 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"
---


# 180.181 Chlorpropham; tolerances for residues.

(a) *General.* (1) Tolerances are established for residues of the plant regulator and herbicide chlorpropham (isopropyl m-chlorocarbanilate (CIPC) in or on the following food commodities:

| Commodity | Parts per million |
| --- | --- |
| Potato | 30 |
| Potato, wet peel | 40 |

(2) Tolerances are established for the combined residues of the plant regulator and herbicide chlorpropham (isopropyl m-chlorocarbanilate (CIPC) and its metabolite 4-hydroxychlorpropham-O-sulfonic acid (4-HSA) in or on the following food commodities:

| Commodity | Parts per million |
| --- | --- |
| Cattle, fat | 0.20 |
| Cattle, kidney | 0.30 |
| Cattle, meat | 0.06 |
| Cattle, meat byproducts except kidney | 0.06 |
| Goat, fat | 0.20 |
| Goat, kidney | 0.30 |
| Goat, meat | 0.06 |
| Goat, meat byproducts except kidney | 0.06 |
| Hog, fat | 0.20 |
| Hog, kidney | 0.30 |
| Hog, meat | 0.06 |
| Hog, meat byproducts except kidney | 0.06 |
| Horse, fat | 0.20 |
| Horse, kidney | 0.30 |
| Horse, meat | 0.06 |
| Horse, meat byproducts except kidney | 0.06 |
| Milk | 0.30 |
| Sheep, fat | 0.20 |
| Sheep, kidney | 0.30 |
| Sheep, meat | 0.06 |
| Sheep, meat byproducts except kidney | 0.06 |

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

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

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

[43 FR 52487, Nov. 13, 1978, as amended at 63 FR 57073, Oct. 26, 1998; 72 FR 37653, July 11, 2007]