40 CFR § 429.130
Applicability; description of the finishing subcategory
June 9, 2020
This subpart applies to discharges to waters of the United States and to the introduction of process wastewater pollutants into publicly owned treatment works from the drying, planing, dipping, staining, end coating, moisture proofing, fabrication, and by-product utilization timber processing operations not otherwise covered by specific guidelines and standards.