What type of mail generally ensures quicker delivery times?

First class mail is specifically designed to provide quicker delivery times compared to other types of mail. It is prioritized by postal services, allowing it to be processed and delivered more rapidly. This category is typically used for items like letters, documents, and small parcels, which are often time-sensitive in nature. First class mail also includes certain features, such as tracking and the ability to reach destinations within one to three business days, depending on the distance.

In contrast, other types of mail, such as standard, bulk, and third class mail, are generally slower and may have longer delivery windows. Standard mail is usually used for advertising and promotional materials, bulk mail is for large quantities of items sent at reduced rates, and third class mail is often reserved for non-urgent material. These options do not prioritize speed in the same way as first class mail does, which is why they are not chosen for quicker delivery.