---
kind: "section"
citation: "21 C.F.R. § 112.55"
title: "21"
number: "112.55"
heading: "What microbial standards apply to the treatment processes in § 112.54?"
url: "https://uscodex.org/cfr/21/112.55"
---

# §112.55. What microbial standards apply to the treatment processes in § 112.54?


The following microbial standards apply to the treatment processes in [§ 112.54](/cfr/21/112.54.md) as set forth in that section.

- (a) **For <I>L.** monocytogenes, Salmonella species, and E. coli O157:H7, the relevant standards in the table in this [paragraph (a)](#a); or
- (b) **Salmonella—** species are not detected using a method that can detect three MPN Salmonella species per 4 grams (or milliliter, if liquid is being sampled) of total solids; and less than 1,000 MPN fecal coliforms per gram (or milliliter, if liquid is being sampled) of total solids.

## Notes

### Amendments

[80 FR 74547, Nov. 27, 2015, as amended at 81 FR 26468, May 3, 2016]

### Authority

Authority: 21 U.S.C. 321, 331, 342, 350h, 371; 42 U.S.C. 243, 264, 271.

### Source

Source: 80 FR 74547, Nov. 27, 2015, unless otherwise noted.

### Amendments

[80 FR 74547, Nov. 27, 2015, as amended at 81 FR 26468, May 3, 2016]