Lexan windows

I just read the nhra rulebook section about windshield and it says thickness is .125
Also it states, must be clear or factory tinted.
Does clear mean "transparent" only or clear as in no added tinting ?
Thanks
The only factory tinting of a windshield would be what is called sun shade. That is the tinted band at the top of the glass.
I am not aware of Lexan with the "sun shield"