As of Jan. 1, California takes precautions to ensure restaurants and other food facilities follow the dictate's of Assembly Bill 97, which prohibits the use of oil, shortening and margarine with more than 0.5 grams of trans fat.  The law was authored by Assemblyman Tony Mendoza and signed by Governor Schwarzenegger in 2008.  California became the first state to pass such a law, although cities such as New York and Boston have similar laws. According to Mendoza's Trans Fat Ban Fact Sheet, trans fat increases the risk of coronary heart disease, the leading cause of deaths in the country.  "This is more than just legislation. This is a call to action that takes into consideration the health