---
kind: "section"
citation: "40 C.F.R. § 180.1142"
title: "40"
number: "180.1142"
heading: "1,4-Dimethylnaphthalene; exemption from the requirement of a tolerance."
url: "https://uscodex.org/cfr/40/180.1142"
---

# §180.1142. 1,4-Dimethylnaphthalene; exemption from the requirement of a tolerance.


An exemption from the requirement of a tolerance is established for the residues of the plant growth regulator, 1,4-dimethylnaphthalene (1,4-DMN), when applied postharvest to all sprouting root, tuber, and bulb crops in accordance with good agricultural practices.


## Notes

### Amendments

[77 FR 68697, Nov. 16, 2012]

### Authority

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

### Source

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

### Amendments

[77 FR 68697, Nov. 16, 2012]