The GHS hazard statement for hazardous to the aquatic environment — acute, category 3. Here is what it means, the label elements that travel with it, and the substances that carry it.
Toxic to fish, crustaceans, or algae in short-term exposure. Environmental classes appear on SDSs and labels, but in the US they sit with EPA and DOT rather than OSHA.
EU CLP classifies aquatic acute Category 1 only, so this code is rare on US/EU sheets; it exists in the UN GHS.
When the engine writes SDS Section 2 or a container label for a product carrying H402, these are the P-codes it assigns, in the official Annex 3 groups:
Reference information, not legal or professional advice. Statement texts and allocations follow GHS Rev 9 / 29 CFR 1910.1200 Appendix C as implemented by our classification engine; the regulatory text and agency practice control. Claims last reviewed July 23, 2026.
When SDS HQ authors an SDS or a container label, it assigns the hazard statements, signal word, pictograms, and precautionary statements from these same tables — automatically, with the calculation shown.