 Instead, mailers can pay postage automatically through a centralized account and track payments online.Beginning in August 2007, the Postal Service began requiring mailers shipping Parcel Select packages using a permit imprint to use eVS for manifesting their packages.All U.S. postage stamps issued under the former United States Post Office Department and other postage items that were released before 1978 are not subject to copyright, but stamp designs since 1978 are copyrighted.