§  73.210   Station classes.

   (a) The rules applicable to a particular station, including minimum and
   maximum facilities requirements, are determined by its class. Possible
   class designations depend upon the zone in which the station's
   transmitter is located, or proposed to be located. The zones are
   defined in § 73.205. Allotted station classes are indicated in the Table
   of Allotments, § 73.202. Class A, B1 and B stations may be authorized in
   Zones I and I-A. Class A, C3, C2, C1, C0 and C stations may be
   authorized in Zone II.

   (b) The power and antenna height requirements for each class are set
   forth in § 73.211. If a station has an ERP and an antenna HAAT such that
   it cannot be classified using the maximum limits and minimum
   requirements in § 73.211, its class shall be determined using the
   following procedure:

   (1) Determine the reference distance of the station using the procedure
   in paragraph (b)(1)(i) of § 73.211. If this distance is less than or
   equal to 28 km, the station is Class A; otherwise,

   (2) For a station in Zone I or Zone I-A, except for Puerto Rico and the
   Virgin Islands:

   (i) If this distance is greater than 28 km and less than or equal to 39
   km, the station is Class B1.

   (ii) If this distance is greater than 39 km and less than or equal to
   52 km, the station is Class B.

   (3) For a station in Zone II:

   (i) If this distance is greater than 28 km and less than or equal to 39
   km, the station is Class C3.

   (ii) If this distance is greater than 39 km and less than or equal to
   52 km, the station is Class C2.

   (iii) If this distance is greater than 52 km and less than or equal to
   72 km, the station is Class C1.

   (iv) If this distance is greater than 72 km and less than or equal to
   83 km, the station is Class C0.

   (v) If this distance is greater than 83 km and less than or equal to 92
   km, the station is Class C.

   (4) For a station in Puerto Rico or the Virgin Islands:

   (i) If this distance is less than or equal to 42 km, the station is
   Class A.

   (ii) If this distance is greater than 42 km and less than or equal to
   46 km, the station is Class B1.

   (iii) If this distance is greater then 46 km and less than or equal to
   78 km, the station is Class B.

   [ 52 FR 37788 , Oct. 9, 1987;  52 FR 39920 , Oct. 26, 1987, as amended at
    54 FR 16367 , Apr. 24, 1989;  54 FR 19374 , May 5, 1989;  54 FR 35339 , Aug.
   25, 1989;  65 FR 79777 , Dec. 20, 2000]