---
kind: "section"
citation: "40 C.F.R. § 432.22"
title: "40"
number: "432.22"
heading: "Effluent limitations attainable by the application of the best practicable control technology currently available (BPT)."
url: "https://uscodex.org/cfr/40/432.22"
---

# §432.22. Effluent limitations attainable by the application of the best practicable control technology currently available (BPT).


Except as provided in [40 CFR 125.30 through 125.32](/cfr/40/125.30..125.32.md), any existing point source subject to this subpart must achieve the following effluent limitations representing the application of BPT:

- (a) Facilities that slaughter no more than 50 million pounds per year (in units of LWK) must achieve the following effluent limitations:
  - (1) In the case of process wastewater associated with the slaughtering of animals on-site or the processing of the carcasses of animals slaughtered on-site:
  - (2) In addition to the limitations specified in [paragraph (a)(1)](#a-1) of this section, in the case of process wastewater associated with the processing (defleshing, washing and curing) of hides derived from animals slaughtered at locations off-site, the limitations for BOD5 and TSS specified in [§ 432.12(a)(2)](/cfr/40/432.12.md?p=a-2) apply.
  - (3) In addition to the limitations specified in [paragraph (a)(1)](#a-1) of this section, in the case of process wastewater associated with the processing of blood derived from animals slaughtered at locations off-site, the limitations for BOD5 and TSS specified in [§ 432.12(a)(3)](/cfr/40/432.12.md?p=a-3) apply.
  - (4) In addition to the limitations specified in [paragraph (a)(1)](#a-1) of this section, in the case of process wastewater associated with wet or low-temperature rendering of material derived from animals slaughtered at locations off-site and dead animals, the limitations for BOD5 and TSS specified in [§ 432.12(a)(4)](/cfr/40/432.12.md?p=a-4) apply.
  - (5) In addition to the limitations specified in [paragraph (a)(1)](#a-1) of this section, in the case of process wastewater associated with dry rendering of material derived from animals slaughtered at locations off-site and dead animals, the limitations for BOD5 and TSS specified in [§ 432.12(a)(5)](/cfr/40/432.12.md?p=a-5) apply.
- (b) Facilities that slaughter more than 50 million pounds per year (in units of LWK) must achieve the following limitations:
  - (1) All facilities must achieve the following effluent limitation for ammonia (as N):
  - (2) In the case of process wastewater associated with the slaughtering of animals on-site or the processing of the carcasses of animals slaughtered on-site, the limitations for BOD5, fecal coliform, O&G, and TSS are the same as the limitations specified in [paragraph (a)(1)](#a-1) of this section.
  - (3) In addition to the limitations specified in paragraphs [(b)(1)](#b-1) and [(2)](#b-2) of this section, in the case of process wastewater associated with the processing (defleshing, washing and curing) of hides derived from animals slaughtered at locations off-site, the limitations for BOD5 and TSS specified in [paragraph (a)(2)](#a-2) of this section apply.
  - (4) In addition to the limitations specified in paragraphs [(b)(1)](#b-1) and [(2)](#b-2) of this section, in the case of process wastewater associated with the processing of blood derived from animals slaughtered at locations off-site, the limitations for BOD5 and TSS specified in [paragraph (a)(3)](#a-3) of this section apply.
  - (5) In addition to the limitations specified in paragraphs [(b)(1)](#b-1) and [(2)](#b-2) of this section, in the case of process wastewater associated with wet or low-temperature rendering of material derived from animals slaughtered at locations off-site and dead animals, the limitations for BOD5 and TSS specified in [paragraph (a)(4)](#a-4) of this section apply.
  - (6) In addition to the limitations specified in paragraphs [(b)(1)](#b-1) and [(2)](#b-2) of this section, in the case of process wastewater associated with dry rendering of material derived from animals slaughtered at locations off-site and dead animals, the limitations for BOD5 and TSS specified in [paragraph (a)(5)](#a-5) of this section apply.

## Notes

### Authority

Authority: 33 U.S.C. 1311, 1314, 1316, 1317, 1318, 1342 and 1361.

### Source

Source: 69 FR 54541, Sept. 8, 2004, unless otherwise noted.