(a) No new special service authorization will be issued. However, consideration will be given to renewal or modification of a special service authorization which was outstanding on February 3, 1958, providing a satisfactory showing has been made in regard to the following, among others:
(1) That the requested operation may not be granted on a regular basis under the existing rules governing the operation of AM stations;
(2) That experimental operation is not involved as provided for by Sec. 73.1510 (Experimental authorizations); and
(3) That public interest, convenience and necessity will be served by the authorization requested. [44 FR 38496, July 2, 1979]