What is the maximum weight for PMI Flat-Rate Envelopes and small Flat-Rate boxes?

The maximum weight for PMI (Priority Mail International) Flat-Rate Envelopes and small Flat-Rate boxes is indeed four pounds. This weight limit is crucial for mailing items internationally, as it helps to streamline shipping processes and pricing structures. It ensures that customers can send items up to a manageable weight without complicating the flat-rate pricing model, which provides simplicity and ease of use for both the sender and the postal service.

Understanding this weight limit is especially important for those working as postal support employees, as it enables them to provide accurate information to customers regarding shipping options and constraints. This knowledge helps to ensure that packages are eligible for the specific service being used and that customers receive the appropriate guidance for their mailing needs.