Editing Private Express Statutes (section)

===Lawful private carriage===
It is possible to set up a private mail delivery service known as "lawful private carriage" if the USPS postage is paid in ''addition'' to any private postage fee that is collected.  Records must be maintained that such postage has been paid, and it must be affixed to the letter cover by U.S. stamps, meter imprints or through another method approved by the USPS; the postage must be canceled by the sender in ink; the date of mailing must be affixed in ink to the cover (either by sender or carrier); and the letter cannot be removed without defacing the cover from the envelope or other container in which the letter is sent.  An agreement must be entered into with the Postal Service to conduct ''volume'' private carriage through the Pricing and Classification Service Center.<ref>{{Cite web | url=https://www.dmnews.com/marketing-channels/direct-mail/news/13076011/mailers-like-centralized-national-cases-division | title=Mailers Like Centralized National Cases Division | date=17 February 2005 }}</ref>