Sec.  13.11   Holding more than one commercial radio operator license.

   (a) An eligible person may hold more than one commercial operator license
   except as follows:

   (1) No person may hold two or more unexpired radiotelegraph operator's
   certificates at the same time;

   (2) No person may hold any class of radiotelegraph operator's certificate
   and a Marine Radio Operator Permit;

   (3) No person may hold any class of radiotelegraph operator's certificate
   and a Restricted Radiotelephone Operator Permit.

   (b) Each person who is not legally eligible for employment in the United
   States, and certain other persons who were issued permits prior to September
   13,  1982,  may  hold  two  Restricted Radiotelephone Operator Permits
   simultaneously when each permit authorizes the operation of a particular
   station or class of stations.