Sec.  5.53   Station authorization required.

   (a) No radio transmitter shall be operated in the Experimental Radio Service
   except under and in accordance with a proper station authorization granted
   by the Commission. However, construction of proposed experimental satellite
   facilities may begin prior to Commission grant of an authorization. Such
   construction will be entirely at the applicant's risk and will not entitle
   the  applicant  to any assurances that its proposed experiment will be
   subsequently  approved  or  regular  services subsequently authorized.
   Additionally,  the  applicant  must  notify the Commission's Office of
   Engineering and Technology in writing that it plans to begin construction at
   its own risk.

   (b) Persons desiring to install and operate radio transmitting equipment
   under this part should first submit an application for a radio station
   license in accordance with  Sec. 5.59 of this part.

   (c) If installation and/or operation of the equipment may significantly
   impact  the environment, see  Sec. 1.1307 of this chapter, an environmental
   assessment as defined in  Sec. 1.1311 of this chapter must be submitted with the
   application.