40 CFR § 428.90 - Applicability; description of the pan, dry digestion, and mechanical reclaimed rubber subcategory.

---
identifier: "/us/cfr/t40/s428.90"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 428.90 - Applicability; description of the pan, dry digestion, and mechanical reclaimed rubber subcategory."
title_number: 40
title_name: "Protection of Environment"
section_number: "428.90"
section_name: "Applicability; description of the pan, dry digestion, and mechanical reclaimed rubber subcategory."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "428"
part_name: "RUBBER MANUFACTURING POINT SOURCE CATEGORY"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Secs. 301, 304(b) and (c), 306(b) and (c), 307(c), Federal Water Pollution Control Act, as amended; 33 U.S.C. 1251, 1311, 1314(b) and (c), 1316(b) and (c), 1317(c); 86 Stat. 816  Pub. L. 92-500."
regulatory_source: "39 FR 6662, Feb. 21, 1974, unless otherwise noted."
cfr_part: "428"
---


# 428.90 Applicability; description of the pan, dry digestion, and mechanical reclaimed rubber subcategory.

The provisions of this subpart are applicable to process waste water discharges resulting from the production of reclaimed rubber except when produced by the wet digestion process.