263 Weight and Size Limits

263.1 Weight Limits

There is no minimum weight requirement for the entry of Airmail M-bags, IPA M-bags, or ISAL M-bags. The maximum weight limit for M-bags is 66 pounds, which includes the tare weight of the sack. Lower maximum weights apply to certain countries. See the Individual Country Listings.

263.2 Size Limits

There are no defined size limits so long as articles being sent can be enclosed in the mailbag.