Sec. 95.409  (CB Rule 9) What equipment may I use at my CB station?

    (a) You must use an FCC type-accepted CB transmitter at your CB 
station. You can identify an FCC type-accepted transmitter by the type-
acceptance label placed on it by the manufacturer. You may examine a 
list of type-accepted equipment at any FCC Field Office or at FCC 
Headquarters. Use of a transmitter which is not FCC type-accepted voids 
your authority to operate the station.
    (b) You must not make, or have made, any internal modification to a 
type-accepted CB transmitter. (See CB Rule 25, Sec. 95.425). Any 
internal modification to a type-accepted CB transmitter cancels the 
type-acceptance, and use of such a transmitter voids your authority to 
operate the station.