Additional postage is required when mailing items exceeding one ounce. This supplemental cost covers the extra weight and resources needed for processing and delivery. For example, a letter weighing 1.5 ounces requires... Read more »
Mail weighing between one and two ounces requires specific postal payment. This weight class often applies to letters containing multiple pages, small packages, or items with slightly heavier materials. A common example... Read more »
Mail weighing between one and two ounces requires specific postal payment. This weight class often includes letters containing multiple pages, small packages, or items with slightly heavier contents. A common example would... Read more »