What does the term "G Mail" refer to in postal operations?

The term "G Mail" refers to "General Mail," which encompasses a wide variety of mail types delivered to residential customers. In postal operations, General Mail includes standard letter mail, advertisements, and promotional materials that are not classified as first-class or other specialized services. This classification is crucial, as it helps postal employees understand the different categories of mail they will be handling and delivering, ensuring efficient sorting and distribution.

While the other options suggest different meanings, such as expedited services or specific governmental mail, none align with the established terminology within postal operations. "General Mail" captures the essence of a broad range of items that postal workers may encounter, making it the correct interpretation of the term "G Mail." Understanding this classification is essential for those working in postal services, particularly in roles like city carrier assistants, as it informs their handling of various mail types.