The State and the Catholic Church are, each within its own ambit, independent and sovereign. Their relations are regulated by the Lateran Pacts. Such amendments to these Pacts as are accepted by both parties do not require any procedure of Constitutional revision.
All religious denominations are equally free before the law.
Their relations with the State are regulated by law on the basis of agreements with their respective representatives. All are entitled to freely profess their religious convictions in any form, individually or in associations, to propagate them, and to celebrate them in public or in private, save in the case of rites contrary to morality. The religious character and the religious or confessional aims of an association or institution shall not involve special legal limitations or special fiscal burdens for its constitution, legal status, or any of its activities. Further information on the constitutional background of Italy is provided by the International Constitutional Law Project at the University of Wuerzburg.