The Commission will carefully examine the initiative. Within 3 months after receiving the initiative:
Commission representatives will meet the organisers so they can explain in detail the issues raised in their initiative
the organisers will have the opportunity to present their initiative at a public hearing in the European Parliament
the Commission will adopt a formal response spelling out what action it will propose in response to the citizens' initiative, if any, and the reasons for doing or not doing so.
The response, which will take the form of a communication, will be formally adopted by the College of Commissioners and published in all official EU languages.
The Commission is not obliged to propose legislation as a result of an initiative. If the Commission decides to put forward a legislative proposal, the normal legislative procedure kicks off: the Commission proposal is submitted to the legislator (generally the European Parliament and the Council or in some cases only the Council) and, if adopted, it becomes law.
To this day, two ECIs reached the threshold of 1 million signatures: "Right 2 Water" and "One of Us". The first public hearing was held on 17th February 2014, hosted by the European Parliament. It was for the ECI Right 2 Water, which gathered more than 1.8 million signatures.