In May 2011 the European Parliament produced a new privacy law about the obligation for web sites to ask users permission to use Cookies. The law, named EU Cookie Law (European Law about Cookies), comes from few previous directives (2002) about users rights in communications and web services, about personal data and privacy preservation.
Italy approved it with the law decree 69/2012 and 70/2012 and it is in effect since the 1st June 2012. The last deadline to upgrade all web sites is the 2nd June 2015.