Home › CFR › Title 40 › Part 15740 CFR Part 157 — Packaging Requirements for Pesticides and DevicesSubpart B — Child-Resistant Packaging§ 157.20— General.§ 157.21— Definitions.§ 157.22— When required.§ 157.24— Exemptions.§ 157.27— Unit packaging.§ 157.30— Voluntary use of child-resistant packaging.§ 157.32— Standards.§ 157.34— Certification.§ 157.36— Recordkeeping.