Sec.  74.791   Digital call signs.

   (a) Digital low power stations. Call signs for digital low power stations
   will be made up of a prefix consisting of the initial letter K or W followed
   by the channel number assigned to the station and two additional letters and
   a suffix consisting of the letters −D.

   (b) Digital television translator stations. Call signs for digital
   television translator stations will be made up of a prefix consisting of the
   initial letter K or W followed by the channel number assigned to the station
   and two additional letters and a suffix consisting of the letter −D.

   (c) Digital low power television stations and Class A television stations.
   Digital low power television and Class A television stations may be assigned
   a call sign with a four-letter prefix pursuant to  Sec. 73.3550 of the
   Commission's rules. Digital low power stations with four-letter prefixes
   will be assigned the suffix −LD and digital Class A stations with
   four-letter prefixes will be assigned the suffix −CD.

   [ 69 FR 69335 , Nov. 29, 2004]