Businesses and organizations using bulk mailings of postcards within the District of Columbia often require specific authorization. This authorization ensures compliance with postal regulations and facilitates efficient processing through the mail system.... Read more »
Bulk mailings of postcards within the District of Columbia require specific authorization from the United States Postal Service. This authorization, obtained through a process involving documentation and fees, allows organizations and individuals... Read more »
Authorization from the District of Columbia’s postal authority is required for bulk mailings of postcards. This process ensures compliance with regulations regarding size, weight, and postage payment, typically involving pre-sorted bundles and... Read more »