---
kind: "section"
citation: "40 C.F.R. § 180.318"
title: "40"
number: "180.318"
heading: "4-(2-Methyl-4-chlorophenoxy) butyric acid; tolerance for residues."
url: "https://uscodex.org/cfr/40/180.318"
---

# §180.318. 4-(2-Methyl-4-chlorophenoxy) butyric acid; tolerance for residues.

- (a) **General.**
  - (1) A tolerance is established for the herbicide 4-(2-methyl-4-chlorophenoxy) butyric acid in or on the following food commodity:
  - (2) Tolerances are established for the combined residues, free and conjugated, of the herbicide MCPB, 4-(4-chloro-2-methylphenoxy)butanoic acid, and its metabolite MCPA, (4-chloro-2-methylphenoxy)acetic acid, in or on the following food commodities:
- (b) **Section 18 emergency exemptions.** [Reserved]
- (c) **Tolerances with regional registrations.** [Reserved]
- (d) **Indirect or inadvertent residues.** [Reserved]

## Notes

### Amendments

[68 FR 39441, July 1, 2003, as amended at 73 FR 66785, Nov. 12, 2008]

### Authority

Authority: 21 U.S.C. 321(q), 346a and 371.

### Source

Source: 36 FR 22540, Nov. 25, 1971, unless otherwise noted.

### Amendments

[68 FR 39441, July 1, 2003, as amended at 73 FR 66785, Nov. 12, 2008]