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.