Sec. 95.607  CB transmitter modification.

    Only the holder of the grant of authorization of the particular type 
accepted CB transmitter may make the modifications permitted under the 
provisions for type acceptance (see part 2 of this chapter.) No grantee 
shall make any of the following modifications to the transmitter without 
prior written permission from the FCC (Federal Communications 
Commission):
    (a) The addition of any accessory or device not specified in the 
application for type acceptance and authorized by the FCC in granting 
the type acceptance;
    (b) The addition of any switch, control or external connection;
    (c) Any modification to provide for additional transmitting 
frequencies, increased modulation level, a different form of modulation, 
or increased TP (RF transmitter power expressed in W (watts), either 
mean power (TP averaged over at least 30 cycles of the lowest modulating 
frequency, typically 0.1 seconds at maximum power) or peak envelope 
power (TP averaged during 1 RF cycle at the highest crest of the 
modulation envelope), as measured at the transmitter output antenna 
terminals.)

                           Technical Standards