
This process is completed when the letter is delivered and the receiver signs for the item.

As the letter travels from post office to post office and through any sorting office, it has to be signed for on a ledger. Upon payment of this fee the sender is given a receipt, and (usually) a unique numbered registration label is affixed to the letter. Generally, the item is pre-paid with the normal postage rate and an additional charge known as a registration fee.
TRACKING NUMBER ON CERTIFIED MAIL RECEIPT SERIAL
Today, however, the registration process is largely computerized with barcode registration labels replacing the traditional analog labels having only a printed serial number. Earlier similar services were known as Money Letters. Many countries have issued special postal stationery and postage stamps for registered mail.
TRACKING NUMBER ON CERTIFIED MAIL RECEIPT MANUAL
Traditionally, registered mail was a manual process which gave rise to a great variety of distinctive postal markings, like handstamps, and usage of registration labels. See the country-specific information below for details. The name of this service varies from country to country, and postal services in some countries offer more than one level of service under different names (e.g., "certified mail" and "registered mail" in the U.S.). restricted delivery, which confirms that only a specified person, or authorized agent, will receive the specific mail.

