View source for Registered Mail

[[File:Image.png|thumb|Registered Mal Sticker of USPS]]
Registered Mail is a type of additional mail service with the information registered at acceptance, the item will also be given with a code and a receipt will be given to the sender, the recipient will be asked to provide a signature during the delivery process, the item can only be delivered to the designated recipient or other personnel with the authorization of the recipient. Most postal service providers provide tracking service for this type of mail. In most conditions, letters, packets and printed matter can be mailed as registered mail. Special Marks and Registered mail labels are also applied to help extinguish registered mail from other regular mail pieces.

The code for Registered Mail is, most of the time, printed and stuck to the mail piece with a barcode label (CN04). The mail will be recorded when moving through the network made up of post offices and exchange offices until being delivered.

With the development of the Internet and Barcode technology, registered mail can be recorded more easily, and it is made possible for the client to trace their mail piece online.

Under most circumstances, the International Registered Mail Label was made up of the 13-digit tracking number and the corresponding barcode. <blockquote>[[File:Image CN04.png|thumb|An example of International Registered Mail Label (CN04)]]'''Please refer to [[UPU S10 Standard]] for the meaning of the tracking number.'''</blockquote>