---
kind: "section"
citation: "40 C.F.R. § 725.420"
title: "40"
number: "725.420"
heading: "Recipient microorganisms."
url: "https://uscodex.org/cfr/40/725.420"
---

# §725.420. Recipient microorganisms.


The following recipient microorganisms are eligible for either exemption under this subpart:

- (a) **Acetobacter aceti.**
- (b) **Aspergillus niger.**
- (c) **Aspergillus oryzae.**
- (d) **Bacillus licheniformis.**
- (e) **Bacillus subtilis.**
- (f) **Clostridium acetobutylicum.**
- (g) **Escherichia coli—** K-12.
- (h) **Penicillium roqueforti.**
- (i) **Saccharomyces cerevisiae.**
- (j) **Saccharomyces uvarum.**
- (k) **Trichoderma reesei—** strain QM6a and its derivatives used only in submerged standard industrial fermentation operations as defined at [40 CFR 725.3](/cfr/40/725.3.md).
- (l) **Bacillus amyloliquefaciens—** subsp. amyloliquefaciens.

## Notes

### Amendments

[62 FR 17932, Apr. 11, 1997, as amended at 85 FR 13772, Mar. 10, 2020]

### Authority

Authority: 15 U.S.C. 2604, 2607, 2613, and 2625.

### Source

Source: 62 FR 17932, Apr. 11, 1997, unless otherwise noted.

### Amendments

[62 FR 17932, Apr. 11, 1997, as amended at 85 FR 13772, Mar. 10, 2020]