The Start of Construction Notice, in Italian called CILA (Comunicazione di inizio lavori asseverata) is the document that regulates building procedures. The CILA is a communication signed by a qualified technician that is registered at the municipality to communicate the start of works such as follows:
extraordinary maintenance, without any involvement in the structural components and without any increase in volume, useful surface area or building units;
opening doors or moving internal walls without an increase in building units.