---
kind: "section"
citation: "40 C.F.R. § 180.721"
title: "40"
number: "180.721"
heading: "Isoprothiolane; tolerances for residues."
url: "https://uscodex.org/cfr/40/180.721"
---

# §180.721. Isoprothiolane; tolerances for residues.

- (a) **General.** Tolerances are established for residues of the fungicide isoprothiolane, including its metabolites and degradates, in or on the commodities in Table 1 to this [paragraph (a)](#a). Compliance with the tolerance levels specified in Table 1 to this [paragraph (a)](#a) is to be determined by measuring only residues of isoprothiolane (bis(1-methylethyl) 2-(1,3-dithiolan-2-ylidene)propanedioate) in or on the commodities:
- (b) -(d) [Reserved]

## Notes

### Amendments

[86 FR 68925, Dec. 6, 2021]

### Authority

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

### Source

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

### Amendments

[86 FR 68925, Dec. 6, 2021]