Regular memberships are restricted to companies engaged in the delivery and distribution of circulars, tabloids, catalogues, flyers, samples and other advertising materials. whose primary function is the sale or brokering of delivery services through private delivery companies, as well as to companies
Associate memberships are available to companies whose primary function is the sale or brokering of delivery services through private delivery companies, as well as to companies engaged in a business related to those of the regular members. This includes printers, advertising agencies, publishers, poly suppliers, and other vendors. Associate members have no voting rights.
Newly formed delivery companies which meet the qualifications for membership are welcome to attend the annual conference. Applications for membership of newly formed companies are considered by the Board of Directors on a provisional status with permanent membership after the company has successfully engaged in delivery for one full year.