International postal item - postal item forwarded and delivered abroad, received from the other countries or forwarded in transit.
International postal items are received for dispatching in the countries which declared the agreement to accept this kind of items in both directions or only in one direction (the countries are indicated in “UPU guideline on international items acceptance”).

International postal items include:
-  letters (ordinary, registered, insured value);
-  postal cards (ordinary, registered);
-  printed papers (ordinary, registered);
-  small packets (ordinary, registered);
-  literature (ordinary, registered);
-  parcels (ordinary, insured value).
-  IBRS (ordinary) (International Business Reply Service).

Ordinary postal item - item that is not subject to any special formality, and need no particular processing, being forwarded by post on a usual tote, without registration and issue of receipt.
For forwarding the item is deposited in public postal boxes, for delivery – in individual postal boxes.

Registered item - is presented without contents evaluation, the sender receives a receipt and signs in a special register or on advice f-22, after which is effectuated the delivery to the addressee.

Insured postal item - registered item (letters, parcels) received with insured value which is appreciated by the sender, with the issue of a receipt and handed to the addressee with the signature.

The address of the sender and addressee is written by the sender both on postal items and accompanying forms. In the addresses is not allowed abbreviations. 
 
Supplies of an address:
-    addressee’s name (name, surname or complete name of the institution, enterprise);
-    street, number of the building, apartment’s number;
-    postal code;
-    locality (city, village);
-    name of administrative-territorial unit;
-    country.

Addressee’s address is written on the right half in the recto low part of the item. The addressee’s name and address will be indicated in the superior left angle of the item. On letters, addressee’s address can be written on its opposite side. The postage stamps or postal franking impression is applied on the upright part of the item.
On the international postal items, the addressee’s address is written according to the destination country recommendations. In this case, name of the destination country is written twice in parentheses in the state language.
The data about sender and addressee’s address must be written precisely and completely, readable or printed with Latina letters or Arabic numbers. Addressee’s name, locality and destination country will be written with capital letters together with the postal code.