Message: Every accident starts with a hazard, but it can be stopped with the right control measures. Safety control measures are the steps we take to eliminate or minimize risks — they’re the barrier between a hazard and an injury. 📊 Key Concept: The Hierarchy of Controls Safety professionals use this hierarchy (from most effective to least) to control hazards: 1️⃣ Elimination – Remove the hazard completely. Example: Use pre-fabricated parts to avoid on-site cutting. 2️⃣ Substitution – Replace

WILLIAMS OLEFINS PLANT EXPLOSION AND FIRE The U.S. Chemical Safety and Hazard Investigation Board found the following key issues during their investigations: ‣ Management of Change ‣Pre-Startup Safety Review ‣ Process Hazard Analysis ‣Overpressure Protection ‣ Hierarchy of Controls ‣ Operating Procedures ‣Process Safety Culture | Chemical Engineering, Prof.Dr. Ahmed Faiq Al-Alawy