These instructions govern the use of radios that have the capability of transmitting on frequencies that are assigned for use in railroad operations.

All persons-in-charge of private cars with access to such radios must comply with the applicable operating rules of the railroad on which they are located. The following summary contains material from the Code of Federal Regulations 49CFR Part 220 that prescribes minimum requirements – railroads may adopt additional or more stringent requirements.

Non-railroad employees should transmit on railroad-assigned frequencies only when authorized to do so by the railroad, or in case of emergency.

Transmitting (220.31): Before transmitting, listen long enough to make sure that the channel is not being used.

Identification (220.27): When transmitting or acknowledging, a radio communication must begin with the required identification. For mobile units, use the name or initials of the railroad and train or engine number, or words that precisely identify the mobile unit.

Receiving (220.33): Any information, instruction or advice received that could affect the safety of a railroad operation must be repeated to the transmitting party.

Ending (220.35): Use “Over” at the close of each transmission to which a response is expected. Use “Out” at the close of each transmission to which no response is expected.

Emergency Radio Transmissions (220.47): Initial emergency calls will begin with the words “Emergency, Emergency, Emergency”. Emergency calls must contain as much complete information as possible. Emergency calls have priority over all other transmissions and, unless answering or aiding the emergency call, do not send any communication until certain that no interference will result.