I am just courious about the standards used from state to state about the number of flashes emergency, utility, and public safety vehicles (public and private owned) have to produce when their lights are in use. I am from Kentucky but I am not aware of KY having such regulations. Many older vehicles here still use the lights they were originally equipped with. I have just learned that Tennessee does have such standards and I have seen vehicle operators add additional lights to their original light configeration to make up the extra flashes. Any information would be appreciated.