Which rear lights do you have to keep working

[EastCoastCB]

Originally Posted by o1marc

If all 8 are red, what do you use for turn signals?

Turn signals are often shared with tail lights and can be red.

[o1marc]

Originally Posted by EastCoastCB

Turn signals are often shared with tail lights and can be red.

I see that is correct. I searched and it said they don't have to be red but usually are. My experience has been the opposite, rarely do I see red turn signals.

[Shannon Elhart]

Wow, you are all SO helpful - thank you very very much!

[stamp11127]

Here is a different line of thought on this. Since this was a "commercial" vehicle at one time and came under the FMCSA rule book during that time, why not still adhere to the rules.
That would avoid any question about complying to the lighting standards.

[Rock-N-Ruth]

Originally Posted by Shannon Elhart

Back of bus image:

The three little lights at the top are clearance markers. Must keep.
The red and yellow lights at the top are for the school stop, bus stop markers. In most States if you want to keep these you can convert them to turn signals, or take the colored lenses off of them and use them for off-road lights, and on the rear they can be used as backup lights.
The next set of Lights, the big yellow and red lights about Midway up the back are your turn signal and brake lights. Must keep.
The two red lights that look like trailer lights near the bottom are brake lights, and sometimes also turn signals. Must keep
The reflectors are not required but not a bad thing.

[musigenesis]

Originally Posted by Rock-N-Ruth

The three little lights at the top are clearance markers. Must keep.
The red and yellow lights at the top are for the school stop, bus stop markers. In most States if you want to keep these you can convert them to turn signals, or take the colored lenses off of them and use them for off-road lights, and on the rear they can be used as backup lights.
The next set of Lights, the big yellow and red lights about Midway up the back are your turn signal and brake lights. Must keep.
The two red lights that look like trailer lights near the bottom are brake lights, and sometimes also turn signals. Must keep
The reflectors are not required but not a bad thing.

According to the doc that was posted recently, the three little lights (red in the back, amber in the front) are "identification lamps".

Doc: https://www.govinfo.gov/content/pkg/...sec571-108.pdf (p. 436 of the text or page 61 of the PDF).

[o1marc]

Originally Posted by Rock-N-Ruth

The two red lights that look like trailer lights near the bottom are brake lights, and sometimes also turn signals. Must keep

I don't beleive anything on those 2 lights is required other than the clear tag light in the bottom it.

[fignasiak]

I like this web page for lighting requirements even though it is Canadian:
https://one.nhtsa.gov/cars/rules/sta...y/TBMpstr.html

The clearance lights (3 in the middle and one on each side) are required due to the width of the vehicle. The side ones may be on the edge and be for the side as-well-as the rear; something to keep in mind if you move them. I consider reflects a good idea regardless, as a passive way to be visible at night (sometimes the light lens is also a reflector). Imagine if your battery is dead, no lights work, and your on the side of the road. Of course you will have the safety triangles etc. so it isn't too bad

Also in my research I thought I saw something about maximum height of turn/stop lights. So that is why I am not sure what to do with the top lights that formerly flashed. I will probably do rear flood lights for backing-up.