The users of the postal services of the Post of Serbia can realize those services through a legal representative, in accordance with the general regulations governing the Letters of Authorization. Letter of Authorization can be issued for the delivery of all items, specific types of postal items, or for a single item.
Letter of Authorization, issued by the Post, is made on the “Authorization” form, in two or more identical copies, depending on the number of legal representatives. One copy of the Letter of Authorization shall be deposited in the Post Office, where it was issued, and the legal representative shall keep one copy for themselves. The user of the postal service can use one "Authorization" form to authorize a maximum of three persons. Number of legal representatives is not limited.
If the grantor of the authorization authorized two or more persons using one form and wishes to change one of the representatives, he is obliged to revoke the current authorization and deposit a new one.
In case that the user of a PO Box is a natural person who authorized another natural person to collect his postal items from the PO Box, this Letter of Authorization is issued for the delivery of all types of postal items. If the user of a PO Box is a legal entity, this entity is obliged to authorize one or more individuals to collect the items from the PO Box, and this Letter of Authorization is also issued for all types of postal items. A person authorized to grant authorizations can simultaneously be an authorized person.
Letter of Authorization, issued by the Post Office, is valid until the date specified therein, but no later than the end of the calendar year in which it was issued.
The Letter of Authorization, certified by competent authorities or legal entities, is valid until the date specified therein, and must be signed by an authorized person from those competent bodies, agencies or by those legal entities, as well as stamped by the same bodies, agencies, or entities. The authorized person is obliged to deposit a copy, a certified transcript, or a certified copy of the Letter of Authorization at the Post Office. Letter of Authorization, certified by the competent authority, agency, legal entity, or company, ceases to be valid upon the expiration of the deadline, revocation by the grantor of authorization, death of the grantor of authorization or the authorized person, assigning of a caretaker to the grantor of authorization, or other reasons prescribed by law.
If the grantor revokes the granted authorization, he is obliged to send a written notice to the Post Office where the authorization was deposited.
In the event of loss of the Letter of Authorization, the authorized person is obliged to inform, in writing, the Post Office where he received the postal items. The same shall be done by the grantor of authorization in case he was notified by the authorized person about the loss of the Letter of Authorization. The grantor of authorization shall, in that situation, give the new Letter of Authorization, if he still wishes to do so.
To exercise the rights from the Letter of Authorization, the authorized person shall, upon request of the Post Office employees, submit the Letter of Authorization for the purposes of proving his identity.
The Letter of Authorization cannot be issued to a person who does not have legal capacity, who is illiterate, or a person who is not able to sign the documents.