Since 1975 in Italy it has been illegal to wear "any mask or clothing that makes it impossible to identify the wearer." However, the law provided "exceptions for 'justified cause'", interpretted to mean coverings required for religious reasons. While the bill makes no mention of religion, it does not allow any religious exemptions. Those wearing the burqa or niqab face small fines while those promoting or causing women to wear such coverings face prison and large fines. It is unknown how many people will be affected by the law. However, Islam is second only to Catholism in Italy, having over a million adherents.