Planning (Hazardous Substances) Act 1990 (c. 10) Planning (Hazardous Substances) Act 1990 (c. 10) Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below: Sch. 6 para. 11(3) omitted by Planning (Consequential Provisions) (Wales) Act 2026 Sch. 2 para. 363 27Paragraph 27 Planning (Hazardous Substances) Act 1990 (c. 10)