Certified Medical Administrative Assistants (CMAA) Practice Exam

The fastest delivery service offered by the United States Postal Service (USPS) is Express Mail. This service guarantees next-day delivery in most areas, including on weekends and holidays, making it the quickest option available for sending mail and packages. Express Mail is designed for urgent shipments that require rapid delivery, and it often includes tracking and insurance as part of the service.

Other services, such as Priority Mail and First-Class Mail, also offer reliable delivery options but do not guarantee the same speed as Express Mail. Priority Mail typically delivers within one to three business days, while First-Class Mail takes one to three days but does not have the same level of speed assurance. Media Mail is specifically for shipping educational materials and is the slowest option, as it can take several days to weeks for delivery. Thus, Express Mail stands out as the best choice for time-sensitive shipping needs.