Did DOT Change The Lighting Requirements?

Eh? I can see your point. My problem is the center markers are barely smaller than the main set. They should be half the size...

 

I see a lot of trailers with 4” lights all the way across.

 

Would be better than that. 4's on the out and 3's from the look of it on the inside? Mess's with my eyes....

 

I think they’re all 4’s. I don’t know if I’ve ever seen 3” round LED’s.

 

Must be the angle then, i swear the inners are smaller... (just)...

 

It is legal to have amber turn signals on the rear.

 

FMVSS 108 references SAE J578 which makes clear that the color of the light emitted is the requirement, not the color of the lens.

 

I agree with x1
no reflective tape is a violation
no red reflectors is another violation (the reflective tape may do double duty if it is red on the outside ends)
the under-ride protection (bumper) is legal if the trailer is 48' or less and manufactured before a certain date (which escapes my mind at this time) and the picture is of an older trailer as seen by the left nailing strip.

 

Yep