Educational Information Only
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HSA Section 18 — Categories
Hazardous Substances Act (พระราชบัญญัติวัตถุอันตราย) — Section 18.
Plain-English Summary
Type 1 (notification) → Type 4 (prohibited); each with distinct authority.
Official Text
Official Thai text at the Royal Gazette / Office of the Council of State. Translation summary only.
Consult official sourceParent Statute
Hazardous Substances Act
พระราชบัญญัติวัตถุอันตราย · B.E. 2535 (1992)
The Hazardous Substances Act B.E. 2535 (1992) regulates hazardous chemicals across the lifecycle (manufacture, import, possession, transport, disposal). Multiple authorities (Department of Industrial Works, Thai FDA, Department of Agriculture) administer by category. Type 4 substances are absolutely prohibited.
The summary above is a plain-English educational paraphrase of Section 18 of the Hazardous Substances Act. It is not an authoritative translation. For the binding Thai text, consult the Royal Gazette or the Office of the Council of State. Educational use only — not a substitute for advice from a Thai-qualified lawyer.
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