DE SB199

Amends the definition of "extremely hazardous substance" (EHS) to include any chemical that may cause public death, injury, or property damage through short-term exposures due to toxicity, reactivity, volatility, or corrosivity.

Requires the Department to develop an inspection schedule to ensure compliance with hazardous substance regulations, prioritizing facilities with the highest substance hazard indexes for initial inspection.

Mandates the Department provide covered facility owners and operators with 24-hour advance notice before inspections, except in cases of exigent circumstances or safety concerns that warrant unannounced inspections.

Replaces the requirement for mandatory inspections every 3 years with a flexible frequency determination based on facility risk, compliance history, recent incidents, or recent compliance.

Eliminates the requirement for state inspectors to be "tested" and establishes that only Department-designated "inspectors" conduct inspections, who must present state-issued identification upon request but may not have the card reproduced.