6. Allocation of specific channels to each class: The channels are allocated to the several classes as follows: Clear channels. The following channels are designated as clear channels: 640, 650, 660, 670, 680, 690, 700, 710, 720, 730, 740, 750, 760, 770, 780, 800, 810, 820, 830, 840, 850, 860, 870, 880, 890, 900, 940, 990, 1000, 1010, 1020, 1030, 1040, 1050, 1060, 1070, 1080, 1090, 1100, 1110, 1120, 1130, 1140, 1160, 1170, 1180, 1190, 1200, 1210, 1220, 1500, 1510, 1520, 1530, 1540, 1550, 1560, 1570 and 1580. Regional channels. The following channels are designated as regional channels: 550, 560, 570, 580, 590, 600. 610, 620, 630, 790, 910, 920, 930, 950, 960, 970, 980, 1150, 1250, 1260, 1270, 1280, 1290, 1300, 1310, 1320, 1330, 1350, 1360, 1370, 1380, 1390, 1410, 1420, 1430, 1440, 1460, 1470, 1480, 1590, 1600. Local channels. The following channels are designated as local channels: 1230, 1240, 1340, 1400, 1450, and 1490 kc. 7. Use of regionaland local channels by countries. All countries may use all regional and all local channels, subject to the power limitations and standards for prevention of objectionable interference set forth in this Agreement. 8. Priorityof use of clear channels by countries. (a) The clear channels are assigned for priority of use by Class I and II stations in the several countries in accordance with the table POd, p. 1020 . set forth in Appendix I. (b) Each such channel shall be used in a manner conforming to the best engineering practice with due regard to the service to be rendered by the dominant stations operating thereon, as set forth elsewhere in this Agreement. If, for one year within the term of this Agreement, a country fails to make any use of a clear channel assigned to it, the channel shall be considered open for use by the other countries, parties to this Agreemient, pursuant to such arrangement as may be agreed upon by their respective administrations and without any necessity for revision of this Agreement. (c) No country to which a clear channel has been thus assigned shall permit, or agree to permit, any other country to use such channel in a manner not in conformity with this Agreement without first giving sixty days a advance notice of its intention so to do to all other coun- tries, parties to this Agreement. If during this period of sixty days a any other country shall present objections to such proposed use of the channel, the country to which the clear channel has been assigned shall not permit, or agree to permit, such proposed use until the difference presented by the objection has been amicably resolved. (d) If within the period of this Agreement the country to which a clear channel has been assigned shall have made use of the channel but not in the manner above prescribed or not to the extent required by the provisions of this Agreement, such country shall be considered as I calendar days TREATIES [55 STAT.
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