§ 22.912   Service area boundary extensions.

   This  section  contains  rules  governing  service area boundary (SAB)
   extensions. SAB extensions are areas (calculated using the methodology of
   § 22.911) that extend outside of the licensee's Cellular Geographic Service
   Area (CGSA) boundary into Unserved Area or into the CGSA of a neighboring
   co-channel licensee. Service within SAB extensions is not protected from
   interference or capture under § 22.911(d) unless and until the area within
   the SAB extension becomes part of the CGSA in compliance with all applicable
   rules.

   (a) Extensions into Unserved Area. Subject to paragraph (c) of this section,
   the licensee of a Cellular system may, at any time, extend its SAB into
   Unserved Area and provide service on a secondary basis only, provided that
   the extension area comprises less than 130 contiguous square kilometers (50
   contiguous square miles). If more than one licensee of a Cellular system
   extends into all or a portion of the same Unserved Area under this section,
   all such licensees may provide service in such Unserved Area on a shared
   secondary (unprotected) basis only.

   (b) Contract extensions. The licensee of any Cellular system may, at any
   time, enter into a contract with an applicant for, or a licensee of, a
   Cellular  system  on  the  same channel block to allow one or more SAB
   extensions into its CGSA (not into Unserved Area).

   (c) Gulf of Mexico Service Area. Land-based Cellular system licensees may
   not extend their SABs into the Gulf of Mexico Exclusive Zone (GMEZ) absent
   written contractual consent of the co-channel GMEZ licensee. GMEZ licensees
   may not extend their SABs into the CGSA of a licensee on the same channel
   block in an adjacent CMA or the Gulf of Mexico Coastal Zone absent written
   contractual consent of the co-channel licensee.

   [ 79 FR 72151 , Dec. 5, 2014]

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