What is the weight requirement for sending Standard Mail?

The weight requirement for sending Standard Mail is indeed less than 16 ounces. This classification is important because it defines the limits for what can be considered Standard Mail versus other types of mail, such as First-Class Mail. Standard Mail is designed primarily for bulk mailing and marketing materials, allowing for economical shipping of printed matter and other non-urgent materials.

Mail that exceeds the 16-ounce limit generally must be sent using First-Class Mail or another appropriate service based on its weight and dimensions. By adhering to this weight restriction, senders can take advantage of the cost-effective rates offered by Standard Mail for items that do not require immediate delivery.