§  73.28   Assignment of stations to channels.

   (a) The Commission will not make an AM station assignment that does not
   conform with international requirements and restrictions on spectrum
   use that the United States has accepted as a signatory to treaties,
   conventions, and other international agreements. See §  73.1650 for a
   list of pertinent treaties, conventions and agreements, and §  73.23
   for procedural provisions relating to compliance with them.

   (b) Engineering standards now in force domestically differ in some
   respects from those specified for international purposes. The
   engineering standards specified for international purposes (see
   §  73.1650, International Agreements) will be used to determine:

   (1) The extent to which interference might be caused by a proposed
   station in the United States to a station in another country; and

   (2) whether the United States should register an objection to any new
   or changed assignment notified by another country. The domestic
   standards in effect in the United States will be used to determine the
   extent to which interference exists or would exist from a foreign
   station where the value of such interference enters into a calculation
   of:

   (i) The service to be rendered by a proposed operation in the United
   States; or

   (ii) the permissible interfering signal from one station in the United
   States to another United States station.

   [ 28 FR 13574 , Dec. 14, 1963, as amended at  29 FR 9499 , July 11, 1964;
    49 FR 32358 , Aug. 14, 1984;  50 FR 18821 , May 2, 1985;  54 FR 39736 ,
   Sept. 28, 1989;  56 FR 64857 , Dec. 12, 1991]

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