Packing.org is a good site to use to gain access to the actual state sites.
BEWARE that if you rely on the info posted directly on Packing.org, it is subject to some errors (that could jam you up). I have noted some glaring errors there in the past. But as a gateway to the laws in all 50 states, it is worthwhile.
Packing.org. is a great website. It is the site I most contribute to, and have a registered user for some time. Not only does it contain extensive state information, but up to the minute news and talk interaction from all over the country. Others I contribute to are berettaforum.net and smith-wessonforum.com as Doc Holiday.