Any carrier who charges different rates and imposes different conditions for the carriage of the same goods over the same transport links according to the country of origin or of destination of the goods in question shall, if so required by the Commission, show that such action is not in breach of the provisions of this Regulation.

The charging of different rates and the imposing of different conditions shall not constitute a breach of this Regulation if it results solely from competition between carriers or is due to operating conditions, whether technical or economic, peculiar to carriage over the transport link in question.