Which of the following is NOT considered a Package Service?

Express Mail, now known as Priority Mail Express, is classified as an expedited service rather than a standard package service. The key distinction lies in the delivery speed and service features associated with it. Priority Mail Express offers guaranteed overnight delivery and is accompanied by benefits such as tracking and insurance, which sets it apart from other package services that typically do not guarantee delivery within a specific timeframe.

In contrast, Standard Post (now known as Retail Ground), Priority Mail, and Media Mail are all categorized as package services, each with distinct pricing and delivery options. Standard Post may have longer delivery times and is often used for larger, heavier items, while Media Mail is specifically designed for items like books and educational materials, featuring a lower rate for those specific categories.

Understanding these classifications is essential for correctly identifying the types of services offered by USPS and determining the appropriate service for different shipping needs.