§ 17.21   Painting and lighting, when required.

   Antenna structures shall be painted and lighted when:

   (a) Their height exceeds any obstruction standard requiring
   notification to the FAA (see § 17.4(a) and § 17.7).

   (b) The Commission may modify the above requirement for painting and/or
   lighting of antenna structures, when it is shown by the applicant that
   the absence of such marking would not impair the safety of air
   navigation, or that a lesser marking requirement would insure the
   safety thereof.

   (c) An antenna installation is of such a nature that its painting and
   lighting specifications in accordance with the FAA airspace
   recommendation are confusing, or endanger rather than assist airmen, or
   are otherwise inadequate. In these cases, the Commission will specify
   the type of painting and lighting or other marking to be used for the
   particular structure.

   [ 32 FR 11269 , Aug. 3, 1967, as amended at  42 FR 54824 , Oct. 11, 1977;
    79 FR 56986 , Sept. 24, 2014]

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