What type of article is classified as hazmat according to USPS guidelines?

The classification of hazardous materials (hazmat) according to USPS guidelines is based on the potential risk that certain items present during transport. In this context, any parcel suspected of containing contaminants is considered a hazmat because it may pose a threat to health, safety, property, or the environment. This classification is crucial for proper handling and transportation procedures to ensure safety for postal workers, the recipients, and the general public.

The USPS guidelines require careful evaluation and documentation of items that might contain hazardous materials. Simply classifying hazardous materials as only dangerous goods or flammable materials overlooks the broader spectrum of items that could potentially cause harm if they are not properly identified and handled. Moreover, common household items can contain contaminants or materials that might fall under hazmat regulations, but they are not exclusively classified as hazmat unless they are identified as such during inspection or shipping processes.

In essence, the correct answer emphasizes the importance of vigilance in identifying items that could present unforeseen risks, thereby ensuring compliance with safety protocols and regulations set by the USPS.