The postage stamps are uniform for the whole Commonwealth.
The National Cabinet, with the consent of the National Council, issues the regulations prescribing the conditions and charges for the use of the means of communication. With the consent of the National Council it may delegate this authority to the Postmaster General.
The National Cabinet, with the consent of the National Council, establishes an advisory council to co-operate in deliberations concerning the postal, telegraph and telephone services and rates.
The Commonwealth alone concludes treaties relating to communication with foreign countries.
ARTICLE 89
It is the duty of the Commonwealth to acquire ownership of the railroads which serve as means of general public communication, and to operate them as a single system of transportation.
The rights of the States to acquire private railroads shall be transferred to the Commonwealth on its demand.
ARTICLE 90
With the taking over of the railroads the Commonwealth also acquires the right of expropriation and the sovereign powers of the States pertaining to railroad affairs. The Supreme Judicial Court decides controversies relating to the extent of these rights.