Sec.  101.411   Supplementary showing required.

   (a)  Authorizations for development of a proposed radio service in the
   services included in this part will be issued only upon a showing that the
   applicant has a definite program of research and development, the details of
   which  must  be set forth, which has reasonable promise of substantial
   contribution to these services within the term of such authorization. A
   specific  showing  should  be made as to the factors which qualify the
   applicant technically to conduct the research and development program,
   including a description of the nature and extent of engineering facilities
   that the applicant has available for such purposes.

   (b) Expiring developmental authorizations may be renewed only upon the
   applicant's compliance with the applicable requirements of  Sec. 101.413 (a) and
   (b) relative to the authorization sought to be renewed and upon a factual
   showing that further progress in the program of research and development
   requires  further  radio  transmission  and  that the public interest,
   convenience or necessity would be served by renewal of such authorization.