Sec. 27.56  Antenna structures; air navigation safety.

    A licensee that owns its antenna structure(s) must not allow such 
antenna structure(s) to become a hazard to air navigation. In general, 
antenna structure owners are responsible for registering antenna 
structures with the FCC if required by part 17 of this chapter, and for 
installing and maintaining any required marking and lighting. However, 
in the event of default of this responsibility by an antenna structure 
owner, the FCC permittee or licensee authorized to use an affected 
antenna structure will be held responsible by the FCC for ensuring that 
the antenna structure continues to meet the requirements of part 17 of 
this chapter. See Sec. 17.6 of this chapter.
    (a) Marking and lighting. Antenna structures must be marked, lighted 
and maintained in accordance with part 17 of this chapter and all 
applicable rules and requirements of the Federal Aviation 
Administration. For any construction or alteration that would exceed the 
requirements of section 17.7 of this chapter, licensees must notify the 
appropriate Regional Office of the Federal Aviation Administration (FAA 
Form 7460-1) and file a request for antenna height clearance and 
obstruction marking and lighting specifications (FCC Form 854) with the 
FCC, WTB, 1270 Fairfield Road, Gettysburg, PA 17325.
    (b) Maintenance contracts. Antenna structure owners (or licensees 
and permittees, in the event of default by an antenna structure owner) 
may enter into contracts with other entities to monitor and carry out 
necessary maintenance of antenna structures. Antenna structure owners 
(or licensees and permittees, in the event of default by an antenna 
structure owner) that make such contractual arrangements continue to be 
responsible for the maintenance of antenna structures in regard to air 
navigation safety.