The NAU Bulk Mail Facility offers automated labeling services for pre-printed pressure sensitive labels.
Labels must meet all of the following specifications:

Labels must be continuous from feed - single roll, one-up

Labels must be pressure sensitive

Labels must have addresses printed in ascending zip code order

Label size height must be at least 1" but no more than 4"

Label size width may be up to 6"
Envelopes must meet the following specifications:

Width should be no less that 5" and no more than 16"

Thickness envelopes may not exceed 1/4' in thickness