Which endorsement is NOT allowed on mailpieces bearing Simplified, Occupant, or Exceptional address format?

The endorsement that is not allowed on mailpieces bearing Simplified, Occupant, or Exceptional address formats is Address Service Requested. This is because this type of endorsement requires the sender to receive information about the delivery status of the mailpiece, which is not applicable when using these specific address formats.

Simplified, Occupant, and Exceptional address formats are designed to handle mail in a manner that doesn't tie it to specific individuals or residents, focusing instead on broader delivery options. As such, they function under the premise that detailed delivery updates or services tied to an individual's address are not feasible or necessary. Using the Address Service Requested endorsement contradicts the purpose of these formats because it relates to ongoing delivery issues for specific individuals rather than general occupancy or simplified formats.