How to Prepare Nonprofit Mail
Except for the restrictions on content, mail sent at nonprofit prices looks just like regular Standard Mail. The only difference is the required marking for nonprofit mail. NONPROFIT ORGANIZATION, NONPROFIT ORG, or NONPROFIT must appear:
In addition, the name and address of the nonprofit organization MUST be shown, either on the outside of the mailpiece or in a prominent place on the contents.
Nonprofit mail is sorted and prepared the same way as regular Standard Mail.
For information on nonprofit eligibility see Standard Mail—Nonprofit Eligibility.