§  17.17   Existing structures.

   (a) The requirements found in § 17.23 relating to painting and lighting
   of antenna structures shall not apply to those structures authorized
   prior to July 1, 1996. Previously authorized structures may retain
   their present painting and lighting specifications, so long as the
   overall structure height or site coordinates do not change. The Antenna
   Structure Registration requirements found in § 17.5, however, shall
   apply to all antenna structures that have been assigned painting or
   lighting requirements by the Commission, regardless of prior
   authorization.

   (b) No change in any of these criteria or relocation of airports shall
   at any time impose a new restriction upon any then existing or
   authorized antenna structure or structures.

   [ 32 FR 11269 , Aug. 3, 1967, as amended at  61 FR 4363 , Feb. 6, 1996]

Subpart C--Specifications for Obstruction Marking and Lighting of Antenna
Structures