CFR > Title 40 > Chapter I > Subchapter F > Part 192 > Subpart C CFR > Title 40 > Chapter I > Subchapter F > Part 192 > Subpart C – Implementation Current as of: 2024 | Check for updates | Other versions § 192.20 Guidance for implementation § 192.21 Criteria for applying supplemental standards § 192.22 Supplemental standards § 192.23 Effective date