Sec. 21.406  Developmental report required.

    (a) Upon completion of the program of research and development, or, 
in any event, upon the expiration of the instrument of station 
authorization under which such investigations were permitted, or at such 
times during the term of the station authorization as the Commission may 
deem necessary to evaluate the progress of the developmental program, 
the licensee shall submit, in duplicate, a comprehensive report on the 
following items, in the order designated:
    (1) Report on the various phases of the project which were 
investigated.
    (2) Total number of hours of operation on each frequency assigned.
    (3) Copies of any publication on the project.
    (4) A listing of any patents applied for, including copies of any 
patents issued as a consequence of the activities carried forth under 
the authorization.
    (5) Detailed analysis of the result obtained.
    (6) Any other pertinent information.
    (b) In addition to the information required by paragraph (a) of this 
section, the developmental report of a station authorized for the 
development of a proposed radio service shall include comprehensive 
information on the following items:
    (1) Probable public support and methods of its determination.

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    (2) Practicability of service operations.
    (3) Interference encountered.
    (4) Pertinent information relative to merits of the proposed 
service.
    (5) Propagation characteristics of frequencies used, particularly 
with respect to the service objective.
    (6) Frequencies believed to be more suitable and reasons therefor.
    (7) Type of signals or communications employed in the experimental 
work.
    (c) Normally, developmental reports will be made a part of the 
Commission's public records. However, an applicant may request that the 
Commission withhold from the public certain reports and associated 
material relative to the accomplishments achieved under developmental 
authorization, and, if it appears that such information should be 
withheld, the Commission will so direct.

                        Subparts G--J [Reserved]

               Subpart K--Multipoint Distribution Service