For listings on recently resolved and pending State legislation, here is a good link:
http://www.enjoythedrive.com/content/?id=7984
There is an abundance of interesting info here on the subject of resolved legislation only:
http://www.enjoythedrive.com/content/?id=8024
The SEMA site is a prime source of informantion for anyone who is considering showing, modding, or wanting to be aware of laws governing their ride(s). This deviates from the warranty issue, but is still worth a look.