54 STAT.] MULTILATERAL-TELECOMMUNICATION-APR. 8 , 1938 well as the upper limit of the power provided when these stations are capable of causing international interference. [341] (2) In addition, notification shall be given of frequencies assigned to mobile, portable, private experimental, and amateur sta- tions, as well as those carrying on special services. [342] (3) Likewise, the frequencies used for reception by a coast station for the operation of a special service with ship stations using stabilized transmitters must also be notified to the Bureau of the Union, with a view to their publication. [343] (4) The frequencies provided for by the present Regula- tions for joint use by stations of a given service [500 kc (600 m), 333 kc (900 m), 375 kc (800 m), et cetera] shall not be notified to the Bureau of the Union. [344] (5) The notification provided in paragraph (1) [No. 340] should be made before the frequency is placed in service and sufficiently soon to enable the administrations to take any step which they might find necessary for the purpose of assuring the good operation of their services. [345] (6) (a) However, when the frequency which an adminis- tration intends to assign to a fixed, land, or broadcasting station is a frequency located outside of the bands authorized by the present Regulations for the service in question, this administration shall make the notification provided for in paragraph (5) [No. 344] at least six months before this frequency is placed in operation, or, in urgent cases, at least three months before this date. [346] (b) The notification procedure indicated above shall also be observed when an administration intends to increase the power or effect a change in the radiation conditions of a station already work- ing outside the authorized bands, even if the frequency used is to remain the same. [347] §2. (1) When a frequency is notified by reason of the conclu- sion of a regional arrangement, mention shall be made of this arrange- ment at the time of the notification of the frequency. [348] (2) When a regional arrangement makes the provision that a frequency may be used by several stations carrying on a given serv- ice, only the allocation of this frequency for this service and, if nec- essary, the region covered by the regional arrangement shall be published. [349] §3. With regard to jixed, land, and broadcasting stations, the administrations shall furnish the Bureau of the Union with a com- plete descriptive list for each frequency assigned to these stations. [350] §4. The administrations shall notify the Bureau of the Union of all changes which they propose to effect in the radiation conditions of a station the descriptive list of which has been notified in accordance with the provisions of §1 (1) [No. 340]. [351] §5. As to mobile stations no complete descriptive list shall be furnished. The only data given consists, for each country and for each class of stations separately (ship, aircraft, other vehicles), of the frequencies assigned to these stations within the bands reserved to them. 1503 Fixed, etc. , sttlon. Mobile tations.
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