CFR > Title 40 > Chapter I > Subchapter N > Part 466 > Subpart D CFR > Title 40 > Chapter I > Subchapter N > Part 466 > Subpart D – Copper Basis Material Subcategory Current as of: 2024 | Check for updates | Other versions § 466.40 Applicability; description of the copper basis material subcategory § 466.43 New source performance standards § 466.45 Pretreatment standards for new sources