40 CFR § 418.50 - Applicability; description of the nitric acid subcategory.

---
identifier: "/us/cfr/t40/s418.50"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 418.50 - Applicability; description of the nitric acid subcategory."
title_number: 40
title_name: "Protection of Environment"
section_number: "418.50"
section_name: "Applicability; description of the nitric acid subcategory."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "418"
part_name: "FERTILIZER 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: "33 U.S.C. 1251"
regulatory_source: "39 FR 12836, April 8, 1974, unless otherwise noted."
cfr_part: "418"
---


# 418.50 Applicability; description of the nitric acid subcategory.

The provisions of this subpart are applicable to discharges resulting from production of nitric acid in concentrations up to 68 percent. Discharges from shipping losses are excluded.

[41 FR 2387, Jan. 1, 1976]