Skip to content
LexBuild

40 CFR § 458.40 - Applicability; description of the carbon black lamp process subcategory.

---
identifier: "/us/cfr/t40/s458.40"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 458.40 - Applicability; description of the carbon black lamp process subcategory."
title_number: 40
title_name: "Protection of Environment"
section_number: "458.40"
section_name: "Applicability; description of the carbon black lamp process subcategory."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "458"
part_name: "CARBON BLACK MANUFACTURING POINT SOURCE CATEGORY"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Secs. 301, 304 (b) and (c), 306(b), 307 (b) and (c), Federal Water Pollution Control Act, as amended (33 U.S.C. 1251, 1311, 1314 (b) and (c), 1316(b) and 1317 (b) and (c), 86 Stat. 816  Pub. L. 92-500) (the Act)."
regulatory_source: "43 FR 1343, Jan. 9, 1978, unless otherwise noted."
cfr_part: "458"
---

# 458.40 Applicability; description of the carbon black lamp process subcategory.

The provisions of this subpart are applicable to discharges resulting from the production of carbon black by the lamp process.