Assam will be the third state after Uttarakhand and Gujarat to introduce a Bill seeking a Uniform Civil Code (UCC) and it will exempt the tribal communities from the ambit of the law, Chief Minister Himanta Biswa Sarma said here on Thursday. A UCC means having a common law for all citizens of the country that is not based on religion. Personal laws and laws related to inheritance, adoption and succession are to be covered by a common code.