IMM 742 Stamps Not Affixed
Some items of foreign origin do not bear postage stamps, but instead are marked “POSTAGE PAID,” “ON POSTAL SERVICE,” “SERVICE DES POSTES,” “TAXE PERCUE” or “TP,” or “PORT PAYE” or “PP,” followed by postmark. The marking On Her Majesty’s Service or O.H.M.S. is also sometimes used. Treat this mail as prepaid.
742.2 Parcels Without Postage Stamps
Some foreign post offices do not put postage stamps on parcels. All such parcels received must be regarded as prepaid.
“… Entgelt bezahlt, perceived tax, et cetera …”
“… you make part 2 …”
Administrative Support Manual (ASM)
http://www.ruralinfo.net/Manuals/Administrative support manual.pdf
274.81 Definitions . . . . . . . . . . . . . . . . . . . . 83
274.811 International Transit Mail . . . . . . . . . . . . 83
274.812 Closed Mail. . . . . . . . . . . . . . . . . . . . 84
274.813 À Découvert Letter Post Item . . . . . . . . . . . 84
274.811 International Transit Mail
As used in this part, the term “international transit mail” refers to mail of foreign origin that is passed by a foreign postal administration to the Postal Service for forwarding to a foreign postal administration under a postal treaty or convention. It includes closed mail and à découvert letter post items (see 274.813).
274.812 Closed Mail
The term “closed mail” refers to any bag, container, or mail passed to the Postal Service by a foreign postal administration, the entire contents of which are required, by applicable postal treaties or conventions, to be passed to a foreign postal administration.
274.813 À Découvert Letter Post Item
The term “à découvert letter post item” refers to any international letter post item as defined in the International Mail Manual that is addressed for delivery by a foreign postal administration and is passed to the Postal Service by a foreign postal administration in a bag or container, or mail that must be opened by the Postal Service under applicable postal treaties or conventions because it also contains items addressed for delivery by the Postal Service.
274.82 Special Security Rules
International transit mail is entitled to freedom of transit. It must not be opened, seized, or searched. It is not subject to Agriculture inspection under 274.92, but is subject to screening by Customs and Border Protection officers under 274.913. In accordance with the Universal Postal Convention, any international transit mail consisting of closed mail, à-découvert letter post items, and airmail correspondence must not be detained, but must instead be forwarded to the next foreign postal administration by the quickest routes that the Postal Service uses for mail sealed against inspection.
PS Label 200 is not an accountable item.
No records are kept of the assignment of labels to employees or customers…
UPU documents: https://www.4shared.com/folder/85nHo2mJ/UPU.html