Borrowers should return all materials through the United States Postal Service. No postage is required to return materials under current postal service regulations. All books, magazines, and equipment should be returned in its original packaging. When returning books, magazines, or equipment, the borrower must deliver the materials or equipment to the United States Postal Service by placing the items in a mailbox or taking them to a post office. Placing them on a doorstep for the mail carrier to pick up does not constitute delivery to the postal service and, if problems arise by use of this method, the borrower is responsible for the lost or damaged materials.