What is the definition of "hazardous materials" in trucking?

The definition of "hazardous materials" in trucking refers to substances that pose a risk to health, safety, property, or the environment. This definition is critical because it helps identify materials that require special handling, transportation, and emergency response procedures due to their potential dangers.

For instance, hazardous materials can include chemicals, flammable substances, and toxic agents that, if not managed correctly, could lead to accidents, environmental damage, or health hazards for workers and the general public. This understanding is essential for trucking companies and drivers for compliance with legal regulations and for ensuring the safety of everyone involved in the transportation process.

The other options provided do not align with this definition. Materials that are recyclable do not inherently pose a risk; not all substances transported in bulk are hazardous; and non-toxic materials by definition do not present a danger, which contradicts the concept of hazardous materials. Therefore, the correct choice emphasizes the potential risks associated with certain substances and underscores the need for proper protocols in their transportation.