(1)

These rules shall apply to carriage performed by the State or by legally constituted public bodies provided it falls within the conditions laid down in rule 1.

(2)

In the carriage of postal items, the carrier shall be liable only to the relevant postal administration in accordance with the rules applicable to the relationship between the carriers and the postal administration.

(3)

Except as provided in sub-rule (2), these rules shall not apply to the carriage of postal items. ]