The ITU Radiocommunication Assembly considering that a) the World Administrative Radio Conference, Geneva, 1979, allocated the frequencies 20 kHz ±？0.05 kHz, 2.5 MHz ±？5 kHz (2.5 MHz ±？2 kHz in Region 1), 5 MHz ±？5 kHz, 10 MHz ±？5 kHz, 15 MHz ±？10 kHz, 20 MHz ±？10 kHz and 25 MHz ±？10 kHz to the standard-frequency and time-signal service; b) that additional standard frequencies and time signals are emitted in other frequency bands; c) the provisions of Article 26 of the Radio Regulations.