"In California, Toyota's biggest U.S. market with about one-third of the Prius sales, the vehicle comes with a 10-year warranty or 150,000 miles. " An excerpt from this site... [/url]http://www.presstelegram.com/Stories/0,1413,246~25895~1891978,00.html
Yea, CA and several other states (NY and MA and someone else) require more stringent pollution standards, and seem to require manufacturers to maintain cars to be within those standards for like 10 whole years of 'normal' driving...
you must comply with the standards of your state of residence. so in NY you get a 10year 150k mile emissions warrentee, which covers almost every hybrid part. but if you like in a non-CARB state you get the standard emissions warrentee