What is the maximum weight for items that can be sent via First-Class Mail?

The maximum weight for items that can be sent via First-Class Mail is 13 ounces. This limit allows for a variety of lightweight letters and parcels to be sent efficiently and economically. Items weighing up to this maximum can benefit from the faster delivery standards associated with First-Class Mail, which typically includes options for both letters and small parcels.

In the context of mailing, understanding weight limits is crucial, as items exceeding 13 ounces would need to be sent using other services like Priority Mail, which offers different features and pricing structures. This weight restriction helps the United States Postal Service (USPS) optimize its operational efficiency and maintain delivery speed for First-Class Mail.