1. Freedom of transit is guaranteed throughout the entire territory of
the Union.
2. Freedom of transit for parcel post to be sent by the land and sea routes
is limited to the territory of countries participating in that service.
UNIVERSAL POSTAL UNION-JULY 5, 1947 495
3. Freedom of transit for air-mail parcels is guaranteed throughout the entire
territory of the Union. However, the Administrations which have not
adhered to the Agreement concerning parcel post may not be obliged to
participate in the transmission of air-mail parcels by the land and sea routes.
4. The Administrations which have adhered to the Agreement concerning
parcel post are obliged to assure the transit of C. O. D. parcels, even if they
do not accept such parcels in their service or if the amount to be collected
exceeds the maximum fixed for their own traffic.7
5. Insured articles may be sent in transit in closed mails through the territory
of countries which do not provide such service, or by maritime services
where responsibility for insured articles is not accepted by the countries, but
the responsibility of those countries is limited to that prescribed for registered
articles.
ARTICLE 29
Prohibition against unauthorized charges
It is forbidden to collect postal charges of any kind whatever other than
those prescribed by the Convention and Agreements.
ARTICLE 30
Temporary suspension of services
When, as a result of exceptional circumstances, an Administration finds
itself obliged to suspend the execution of services temporarily, in whole or
in part, it is bound to give notice thereof immediately, by telegraph if necessary,
to the Administration or Administrations concerned.