Do you presort your mail via zip code to your customers or prospects? Already have a presorted standard mail permit imprint account with USPS? Then this is the perfect self-inking rubber stamp designed for high frequency and rapid use. Within the guidelines of USPS Design Permit Imprint Indicia, this stamp is suitable for your mailing needs. Customize your stamp with your city, state and permit information today for your permit imprint stamper! Note: Please note that all dues and fees must be paid in order for this permit imprint indicia to be used as intended. For any additional information contact USPS.