§  90.513   Special provisions.

   (a) The developmental program as described by the application for
   authorization shall be followed unless the Commission shall otherwise
   direct.

   (b) Where some phases of the developmental program are not covered by
   the general rules in this chapter and the rules in this part, the
   Commission may specify additional requirements or conditions as deemed
   necessary in the public interest, convenience, or necessity.

   (c) The Commission may, from time to time, require a station engaged in
   developmental work to conduct special tests which are reasonable and
   desirable to the authorized developmental program.