Shipments of official matter other than franked mail shall be sent by the most economical means of transportation practicable. The Postal Service may refuse to accept official matter for shipment by mail when in its judgment it may be shipped by other means at less expense, or it may provide for its transportation by freight or express whenever a saving to the Government of the United States will result therefrom without detriment to the public service.
The table below lists the classification updates, since Jan. 3, 2012, for this section. Updates to a broader range of sections may be found at the update page for containing chapter, title, etc.
The most recent Classification Table update that we have noticed was Tuesday, August 13, 2013
An empty table indicates that we see no relevant changes listed in the classification tables. If you suspect that our system may be missing something, please double-check with the Office of the Law Revision Counsel.