8.1 International NAVTEX Service messages on 518
kHz shall be broadcast only in English.
8.2 There is often a requirement for NAVTEX broadcasts
to be made in national languages in addition to English. This shall
only be achieved by the provision of a national NAVTEX service. National
NAVTEX services use frequencies other than 518 kHz, and languages
as decided by the Administrations concerned. These National NAVTEX
services may be broadcast on 490 kHz or 4209·5 kHz, or on an
alternative nationally assigned frequency.