"In the event that the Italian authorities notify the concerned draft measure, the Commission would assess its compliance with EU law before its adoption," a note from the Commissions spokesperson's service said.

Vivendi had previously informed the Italian government that it was ready to lodge a formal complaint with the Commission over the law, which is under discussion in parliament.

A second letter with similar content was sent to the European Commissioner for the internal market, Thierry Breton, sources told Reuters.

(Reporting by Foo Yun Chee in Brussels and Elvira Pollina in Milan, writing by Giulia Segreti)