The Hazmat School Blog Archives

California’s Senate Bill 553 (SB 553) revolutionized workplace safety expectations across the state. Enacted under California Labor Code § 6401.9, this landmark law mandates that covered [...]

Kirstie ChisholmManages Hazmat School’s E-Learning courses and blog. Kirstie has extensive experience in the online training and education industry. Kirstie has worked with courses that [...]

The 67th edition of the International Air Transport Association (IATA) Dangerous Goods Regulations (DGR), which took effect on January 1, 2026, introduces updates to safely ship lithium batteries [...]

The Occupational Safety and Health Administration has developed five Hazardous Waste Operations and Emergency Response levels to align first responders’ authority with the danger posed by [...]

Respirable crystalline silica is one of the most common — and most dangerous — hazards on construction, demolition, and fabrication sites. Every time a worker cuts, drills, grinds, or crushes [...]

Every year, workers are seriously injured or killed because equipment they believed was shut down unexpectedly started up again. Lockout Tagout (LOTO) — the set of procedures used to control [...]

E-bikes are one of the fastest-growing categories moving through freight networks right now — and one of the most misclassified. Ask most shipping teams what UN number applies to an e-bike, and [...]

If you’ve ever stared at a lithium battery shipment and asked “wait, is this a 3480 or a 3481?” — you’re not alone. It’s one of the most common questions in [...]

HAZWOPER workers can operate in physically demanding, chemically hazardous environments. The excessive heat in these conditions adds a layer of risk that isn’t always on the safety radar. [...]

Navigating hazardous waste management in California can feel like stepping onto a regulatory minefield. While most U.S. states mirror federal standards, California takes environmental enforcement [...]