• Types of Communications:

Personal, business or voluntary public service activities, including communications to provide assistance to highway travelers. However, communications should be kept short (5 min or less) and should not interfere with other communications.

• Prohibited Communications:

Users cannot advertise or solicit the sale of any goods or services; cannot advertise a political candidate or political campaign; cannot transmit music, whistling, sound effects or any other audio material to amuse or entertain; cannot transmit any sound effects solely to attract attention. Communications should also be free of profane, obscene, or indecent language.

• Emergency Communications:

Operators of CB radios and stations must, at all times and on all channels, give priority to emergency communications. Channel 9 must be used only for emergency communications or traveler assistance. It must not be used for any other purpose.

• Call Signs:

Unlike amateur (ham) radio operators, call signs are not required when using CB (Citizens Band) radio in the United States. Users can communicate freely without the need for formal identification. However, CB radio users often adopt handles or nicknames for informal identification. Amateur (ham) radio operators must however use specific call signs assigned by the FCC.