The Post Office recently released the final standards for folded self-mailers. (FSM)
Summary of key changes:
1. New size and weight standards
2. New definition of what is a FSM, for example items containing a disk is treated differently
3. Can no longer use tabs with perforations
4. Can no longer use tabs on the bottom panel
5. All FSM’s now require a minimum of two tabs
6. There is now a limit to the number of panels in a FSM
7. Postal customers will be encouraged to comply with the new standards right away with final deadline