I have seen a couple post on here about tint laws. Here is a link to a site that you can get in depth info for each state. Hope this helps .

Welcome to TintLaws.com

Here is some info from the site for quick reference.

STATE FRONT SIDES REAR SIDES BACK WINDOW VISOR NET/FILM

AL 32% 32% 32% 6" NET
AK 70% 40% 40% 5" NET
AZ 33% ANY% ANY% AS1 NET
AR 25% 25% 10% 5" NET
CA 70% ANY% ANY% 4" NET
CO* 27% 27% 27% 4" NET
CO* NO% ANY% ANY% 4" NET
CT 35% 35% ANY% AS1 NET
DE 70% ANY% ANY% AS1 NET
FL 28% 15% 15% AS1 NET
GA 32% 32% 32% 6" NET
HI 35% 35% 35% 4" NET
ID 35% 20% 35% AS1 FILM
IL NO ANY% ANY% 6" NET
IN 30% 30% 30% AS1 ?
IA 70% ANY% ANY% AS1 NET
KS 35% 35% 35% AS1 NET
KY 35% 18% 18% AS1 FILM
LA 40% 25% 12% AS1 NET
MA 35% 35% 35% 6" NET
ME 50% 50% 50% 4" FILM
MD 35% 35% 35% 5" NET
MI ? ANY% ANY% 4" NET
MN 50% 50% 50% NO ?
MO 35% ANY% ANY% AS1 NET
MS 28% 28% 28% AS1 NET
MT 35% 20% 20% AS1 FILM
NE 35% 20% 20% AS1 OR 5" FILM
NV 35% ANY% ANY% AS1 NET
NH NO 35% 35% 6" NET
NJ NO ANY% ANY% NO NET
NM 20% 20% 20% AS1 OR 5" NET
NY 70% 70% ANY% 6" NET
NC 35% 35% 35% AS1 NET
ND 50% ANY% ANY% 70% NET
OH 50% ANY% ANY% 70% NET
OK 25% 25% 25% AS1 OR 5" NET
OR 35% 35% 35% 6" NET
PA 70% 70% 70% NO NET
RI 70% 70% 70% AS1 NET
SC 27% 27% 27% AS1 NET
SD 35% 20% 20% AS1 NET
TN 35% 35% 35% AS1 NET
TX 25% 25% ANY% AS1 OR 5" NET
UT 43% ANY% ANY% AS1 NET
VT NO ANY% ANY% AS1 NET
VA 50% 35% 35% AS1 NET
WA 70% 70% 50% 6" FILM
WV 35% 35% 35% 5" NET
WI 50% 35% 35% AS1 NET
WY 28% 28% 28% AS1 OR 5" NET