What do the Return Labels for Hazardous Materials (HAZMAT) Look Like?

If a package that you are mailing is suspected of containing an item that is classified as a hazardous material or one that is prohibited from being mailed, the package will be returned to you by the Postal Service.  Your mailpiece will have a return label applied to it indicating the reason it is being returned.  An example of a domestic and international return label are as follows: 

Label DECDDD-4, Prohibited Item Return Label




















Label DECDDD-5, International Nonmailable Item Label



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