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40 CFR § 419.50 - Applicability; description of the integrated subcategory.

---
identifier: "/us/cfr/t40/s419.50"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 419.50 - Applicability; description of the integrated subcategory."
title_number: 40
title_name: "Protection of Environment"
section_number: "419.50"
section_name: "Applicability; description of the integrated subcategory."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "419"
part_name: "PETROLEUM REFINING 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), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972 as amended by the Clean Water Act of 1977) (the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217."
regulatory_source: "47 FR 46446, Oct. 18, 1982, unless otherwise noted."
cfr_part: "419"
---

# 419.50 Applicability; description of the integrated subcategory.

The provisions of this subpart are applicable to all discharges resulting from any facility that produces petroleum products by the use of topping, cracking, lube oil manufacturing processes, and petrochemical operations, whether or not the facility includes any process in addition to topping, cracking, lube oil manufacturing processes, and petrochemical operations.