Understanding Postal

What to Do
My advice to catalogers that won’t be able to make the necessary changes by next March is to work with the USPS to try to get an exception or extension.

As you become more familiar with the new requirements, you'll notice the USPS has not only published the requirements, but also mixed in other changes it would like to see made. These USPS “preferences” are not requirements, so review them in that context. Some of the “preferences” or “guidelines” may benefit the processing and delivery of your catalog, but if meeting those requirements is costly or burdensome, you don’t need to make them in order to comply.