I'll have to look, but I think my clear lense has a DOT stamp on it.
Which would mean that the lens is DOT approved. It would not apply to the bulb.
Right...I don't have a red bulb, I have LEDs which seems to be addressed above.
Informationally, you may find those 1157 replacement LEDs are REALLY not very bright. I'd recommend an LED board instead. Way more lights on them.