1.Air navigation service providers shall ensure that their 8,33 kHz channel spacing voice communication systems allow an operationally acceptable voice communication between controllers and pilots within the designated operational coverage.
2.Air navigation service providers shall implement the notification and initial coordination processes in their flight data processing systems in accordance with Commission Regulation (EC) No 1032/2006(1) as follows:
(a)the information about the 8,33 kHz channel spacing capability of a flight shall be transmitted between ATC units;
(b)the information about the 8,33 kHz channel spacing capability of a flight shall be made available at the appropriate working position;
(c)the controller shall have the means to modify the information about the 8,33 kHz channel spacing capability of a flight.