ERG2024 supports first responders during the initial phase of a hazardous-materials transportation incident. It is not controlling regulation, a compliance determination, a chemical-specific worker safety document, or a substitute for required shipping-paper emergency-response information.

ERG2024 navigationUse the complete official guide during an incident

Open Guide 149

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ERG 2024 ID 3532ERG identification number: 3532. Material: Polymerizing substance, liquid, stabilized, n.o.s.. Assigned response guide: Guide 149, Substances (Self-Reactive). The ERG index marks this entry with P for a polymerization hazard under certain conditions.#

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Incidents1

Incident

PHMSA Hazmat Incident I-2026070025

PHMSA Hazmat Incident I-2026070025 — HAZARDOUS WASTE, LIQUID, N.O.S. — SANTA FE SPRINGS, CA

UN3532 POLYMERIZING SUBSTANCE, LIQUID, STABILIZED, N.O.S. · incident material matches erg entry

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Record details

Retrieved: Aug 13, 2026
Version: 2024 edition (2024-04-04)

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