With standards in the Mailing Standards of the United States Postal Service, Domestic Mail Manual (DMM 300) 173.3.2, Media Mail Packages are subject to inspection by the Postal Service™. Media Mail Packages may not contain advertising except that books may contain incidental announcements of other books and sound recordings may contain incidental announcements of other sound recordings. Loose-leaf pages and their binders consisting of medical information for distribution to doctors, hospitals, medical schools, and medical students.Printed objective test materials and their accessories.
Media Mail rates are limited to the items listed below: Media Mail® service has special eligibility requirements for permissible contents.
