For any Non-Profit organization who sends out bulk mailing already presorted, permit imprints are a necessity! This high frequency, self-inking rubber stamp makes a highly legible, crystal clear impression every time. Already in compliance with USPS Design Permit Imprint Indicia standards, get a permit imprint that is fast and easy to use. Note: Please note that your postage paid account with USPS must be in good standing for this stamp to be used as intended. For further information contact USPS regarding permit imprint indicia.