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40 CFR § 426.10 - Applicability; description of the insulation fiberglass subcategory.

---
identifier: "/us/cfr/t40/s426.10"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 426.10 - Applicability; description of the insulation fiberglass subcategory."
title_number: 40
title_name: "Protection of Environment"
section_number: "426.10"
section_name: "Applicability; description of the insulation fiberglass subcategory."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "426"
part_name: "GLASS 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), and 316(b) of the Federal Water Pollution Control Act, as amended; 33 U.S.C. 1251, 1311, 1314, 1316 (b) and (c), 1317(b); 86 Stat. 816  Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217."
regulatory_source: "39 FR 2565, Jan. 22, 1974, unless otherwise noted."
cfr_part: "426"
---

# 426.10 Applicability; description of the insulation fiberglass subcategory.

The provisions of this subpart are applicable to discharges resulting from the production of insulation fiberglass in which molten glass is either directly or indirectly made, continuously fiberized and chemically bonded into a wool-like material.