What is the requirement for mailpieces to be considered flat-sized mailpieces in EDDM?

For a mailpiece to be classified as flat-sized mail in Every Door Direct Mail (EDDM), it must adhere to a specific weight limit of 3.3 ounces or less. This classification is essential because it impacts the pricing, handling, and mailing procedures for EDDM.

Flat-sized mailpieces are generally designed for bulk mailings, which include items like catalogs and brochures, and the weight restriction helps to ensure that these pieces can be efficiently processed and delivered through the USPS system. The weight limit is enforced to maintain standards for mail delivery and to ensure that the postal service can handle these items effectively within their operational guidelines.

In contrast, other weight limits suggested by the remaining choices either exceed this classification or impose undue requirements that do not align with the established EDDM guidelines, making Option B the accurate answer.