Sec. 22.599  Assignment of 72-76 MHz channels.

    Because of the potential for interference to the reception of TV 
Channels 4 and 5 by broadcast television sets and video recorders, 
assignments of the 72-76 MHz channels are subject to the following 
conditions:
    (a) Assignments of 72-76 MHz channels for use within 129 kilometers 
(80 miles) of a full service TV station transmitting on TV Channel 4 or 
5 are subject to the condition that the licensee must eliminate any 
interference caused to television reception on TV Channels 4 and 5. If 
the FCC notifies the licensee of an interference problem and the 
licensee does not resolve the problem within 90 days of such 
notification, operation of the interfering 72-76 MHz fixed station must 
be immediately discontinued.
    (b) 72-76 MHz channels may be assigned for use within 16 kilometers 
(10 miles) of a full service TV station transmitting on TV Channel 4 or 
5 under a developmental authorization, pursuant to Sec. 22.413. However, 
for use within 50 meters (164 feet) of a TV station transmitting on TV 
Channel 4 or 5, 72-76 MHZ channels may be assigned under a regular 
authorization, rather than a developmental authorization.