"Hazardous Locations" refer to areas where flammable gases, vapors, or dust may be present, creating a risk of fire or explosion. These locations are classified into different categories based on the likelihood and duration of the hazardous conditions. Common examples include oil refineries, chemical plants, and grain storage facilities. To ensure safety, specialized equipment and safety measures are required in these areas. This includes using explosion-proof devices and following strict National Electrical Code (NEC) guidelines. Proper training and awareness are essential for workers in hazardous locations to minimize risks and protect lives.