Light Bars and Grille Lights on Private Vehicles

I am editing & reposting this under General Discussion since no one responded to my questions under the NRVFC.
I fully support the NRVFC and the few experiences I have had with them over the years have been quite positive. I do have some questions though about the different light bars and grille lights installed on private vehicles used by volunteer firemen.
1. Could someone clarify what type pf lights are authorized for a volunteer's private vehicle?
2. Are citizens required to yield to these private vehicles? There is some confusion here since drivers are not required to pull over for an unmarked police vehicle flashing its lights until they reach a safe destination.
3. Are these lights regulated or restricted or can anyone buy them? If anyone can buy them, how do we know the person is really a volunteer fireman?
4. Are there standards (type, design, color, placement) for light bars and/or grille lights or does each municipality and/or county set their own?
5. Finally, who else can acquire and use these types of lights legally besides volunteer fireman? As far as I know, police are not permitted to install them on their private vehicles.
Thanks.
JoeP
I fully support the NRVFC and the few experiences I have had with them over the years have been quite positive. I do have some questions though about the different light bars and grille lights installed on private vehicles used by volunteer firemen.
1. Could someone clarify what type pf lights are authorized for a volunteer's private vehicle?
2. Are citizens required to yield to these private vehicles? There is some confusion here since drivers are not required to pull over for an unmarked police vehicle flashing its lights until they reach a safe destination.
3. Are these lights regulated or restricted or can anyone buy them? If anyone can buy them, how do we know the person is really a volunteer fireman?
4. Are there standards (type, design, color, placement) for light bars and/or grille lights or does each municipality and/or county set their own?
5. Finally, who else can acquire and use these types of lights legally besides volunteer fireman? As far as I know, police are not permitted to install them on their private vehicles.
Thanks.
JoeP