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40 CFR § 430.90 - Applicability; description of the secondary fiber deink subcategory.

---
identifier: "/us/cfr/t40/s430.90"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 430.90 - Applicability; description of the secondary fiber deink subcategory."
title_number: 40
title_name: "Protection of Environment"
section_number: "430.90"
section_name: "Applicability; description of the secondary fiber deink subcategory."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "430"
part_name: "THE PULP, PAPER, AND PAPERBOARD POINT SOURCE CATEGORY"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Sections 301, 304, 306, 307, 308, 402, and 501 of the Clean Water Act, as amended, (33 U.S.C. 1311, 1314, 1316, 1317, 1318, 1342, and 1361), and Section 112 of the Clean Air Act, as amended (42 U.S.C. 7412)."
regulatory_source: "63 FR 18635, Apr. 15, 1998, unless otherwise noted."
cfr_part: "430"
---

# 430.90 Applicability; description of the secondary fiber deink subcategory.

The provisions of this subpart are applicable to discharges resulting from the integrated production of pulp and paper at deink mills.