---
kind: "section"
citation: "40 C.F.R. § 180.1220"
title: "40"
number: "180.1220"
heading: "1-Methylcyclopropene; exemption from the requirement of a tolerance."
url: "https://uscodex.org/cfr/40/180.1220"
---

# §180.1220. 1-Methylcyclopropene; exemption from the requirement of a tolerance.


An exemption from the requirement of a tolerance is established for residues of the 1-Methylcyclopropene in or on fruits and vegetables when:

- (a) Used as a post harvest plant growth regulator, i.e., for the purpose of inhibiting the effects of ethylene.
- (b) **Applied or used outdoors for pre-harvest treatments.**

## Notes

### Amendments

[73 FR 19150, Apr. 9, 2008]

### Authority

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

### Source

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

### Amendments

[73 FR 19150, Apr. 9, 2008]