1. An inquiry or request for information as to the disposal made of any
article may give rise to the collection of a fee of 40 centimes at most. When,
at the request of the party concerned, an inquiry or request for information
must be sent by air mail, this fee plus the air mail surcharge, or double
this surcharge if the reply is to be returned in the same manner, must be collected.
In the event that telegraph service is requested, the telegraph charge
is collected in addition to the prescribed fee.
2. For each inquiry or request for information relating to several articles
mailed simultaneously at the same office by the same sender to the same addressee,
only one charge or surcharge as mentioned in Section 1 shall be
collected.
3. As for registered articles, no fee is collected, if the sender has already
paid the special fee for a return receipt.
4. Inquiries are accepted only within the period of one year, counting
from the day following the date of mailing of the article. However, every
Administration is bound to comply with simple requests for information presented
after that period which it receives from another Administration regarding
articles mailed less than two years previously.
5. Every Administration is obliged to accept inquiries and requests for
information concerning articles mailed in the territory of other
Administrations.
6. When an inquiry or a request for information has been made necessary
through a fault of the service, the fee collected therefor is returned.