Comment by nunobrito
And you shouldn't worry about such thing under those situations. Wouldn't make any sense except for bureaucrats.
You should worry about knowing the procedures, the channels, how to engage in communication with the hardware available to you.
The same applies to driving... you have to know the road rules, how the car behaves in what situations, how to drive in bad weather, heavy traffic, etc.
Now the best way is to get licenced and drive (=use a radio) in "normal" cirumstances to get experienced before an emergency. Somehow 12yo kids manage to get licenced, but preppers can't.