Home › CFR › Title 50 › Part 2450 CFR Part 24 — Importation and Exportation of PlantsSubpart A — Introduction§ 24.1— Purpose of regulations.§ 24.2— Scope of regulations.Subpart B — Importation and Exportation at Designated Ports§ 24.11— General restrictions.§ 24.12— Designated ports.