What type of mail does the term "Declared Hazmat" refer to?

The term "Declared Hazmat" specifically refers to mail that is properly packaged, marked, and declared by the mailer. This means that the sender has identified the contents as hazardous materials and has taken the necessary precautions to ensure they are handled according to safety regulations. This includes following USPS guidelines for labeling, packaging, and documentation so that postal workers and recipients are aware of the potential hazards associated with the materials being shipped.

Hazardous materials can include a variety of items such as certain chemicals, batteries, and flammable products, which require special handling and transportation methods to mitigate any risks. Proper declaration is crucial because it provides important information to postal workers who may need to take extra precautions during sorting and delivery, as well as ensure compliance with federal regulations.

In contrast, mail that is improperly packaged or has not been declared poses safety risks and cannot be sent through the postal service. Prohibited items, by their nature, are completely disallowed from being mailed and do not conform to the criteria established for "Declared Hazmat." Understanding these distinctions is critical for anyone handling mail that could potentially include hazardous materials.