CFR > Title 40 > Chapter I > Subchapter H > Part 227 > Subpart A CFR > Title 40 > Chapter I > Subchapter H > Part 227 > Subpart A – General Current as of: 2024 | Check for updates | Other versions § 227.1 Applicability § 227.2 Materials which satisfy the environmental impact criteria of subpart B § 227.3 Materials which do not satisfy the environmental impact criteria set forth in subpart B
