How are hazardous materials categorized?

Hazardous materials are categorized based on their properties and hazards because this approach allows for effective management and handling in ways that prioritize safety. Understanding the specific characteristics of various hazardous materials—such as their flammability, toxicity, reactivity, and environmental impact—enables regulatory compliance as well as the implementation of appropriate safety protocols during transportation, storage, and handling. Regulations, such as those established by the U.S. Department of Transportation (DOT) and the Occupational Safety and Health Administration (OSHA), require that hazardous materials be classified to ensure handlers are aware of risks and can take necessary precautions. This systematic categorization helps inform emergency response strategies and ensures proper labeling and documentation.

The other options do not effectively address the necessary considerations in handling hazardous materials. Delivery speed, color of packaging, and weight do not provide essential information regarding the safety and potential risks associated with the materials.