The Postal Service recently filed notice of a change to the weight limitation for First-Class Mail International (FCMI) Large Envelopes (Flats), which would result in the maximum weight limit for FCMI Large Envelopes (Flats) being 15.994 ounces, instead of the current 64 ounce limit.
That request is still pending review.
Thus, the 64 ounce weight limit for FCMI Large Envelopes (Flats) will remain in effect, and not be revised as part of the rates that will be implemented on January 27, 2019. As previously announced, dimensional weight changes will be implemented on June 23, 2019.
Additional information will be provided regarding the prices associated with this change in weight restriction when it is available.
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