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40 CFR § 447.10 - Applicability; description of the oil-base solvent wash ink subcategory.

---
identifier: "/us/cfr/t40/s447.10"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 447.10 - Applicability; description of the oil-base solvent wash ink subcategory."
title_number: 40
title_name: "Protection of Environment"
section_number: "447.10"
section_name: "Applicability; description of the oil-base solvent wash ink subcategory."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "447"
part_name: "INK FORMULATING 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) and (c) and 307(c), Federal Water Pollution Control Act, as amended (the Act); 33 U.S.C. 1251, 1311, 1314 (b) and (c), 1316 (b) and (c) and 1317(c); 86 Stat. 816  Pub. L. 92-500."
regulatory_source: "40 FR 31727, July 28, 1975, unless otherwise noted."
cfr_part: "447"
---

# 447.10 Applicability; description of the oil-base solvent wash ink subcategory.

The provisions of this subpart are applicable to discharges resulting from the production of oil-base ink where the tank washing system uses solvents. When a plant is subject to effluent limitations covering more than one subcategory the discharge limitation shall be the aggregate of the limitations applicable to the total production covered in each subcategory.