Postal Service Practice Exam

The primary use of registered mail is to ensure secure delivery. This service is designed to provide a higher level of protection for valuable or important correspondence. It offers a tracking system that allows senders and recipients to follow the package's journey through the postal system. Additionally, registered mail provides proof of mailing and delivery, requiring a signature from the recipient to confirm receipt. This added layer of security makes registered mail a preferred option for sending sensitive documents, valuable items, or any correspondence where assurance of delivery is critical.

While options like speedy delivery, cost-effective bulk mailing, and identification purposes may serve other functions within postal services, they do not encompass the primary intent of registered mail, which focuses uniquely on secure handling and delivery of items.