CFR > Title 40 > Chapter I > Subchapter N > Part 413 > Subpart H CFR > Title 40 > Chapter I > Subchapter N > Part 413 > Subpart H – Printed Circuit Board Subcategory Current as of: 2024 | Check for updates | Other versions § 413.80 Applicability: Description of the printed circuit board subcategory § 413.81 Specialized definitions § 413.84 Pretreatment standards for existing sources