The Parish System of Evangelization Cells (SCPE) is a global method of evangelisation that operates in small groups that meet weekly or fortnightly in homes. ​ The Parish System of Evangelization Cells originated in 1987, when Don Piergiorgio Perini, known as Fr PiGi, called forty faithful to share the commitment to transform the parish of Sant'Eustorgio in Milan into an ardent community of faith and dedicated to evangelisation. The first Cell was born. Soon the experience spread, as if by contagion, first throughout the parish of Sant'Eustorgio and then in many other parishes. On May 29, 2008, the International Service Organization of the Parish System of Evangelisation Cells was established, which recognised Reverend Don Piergiorgio Perini as Founder and President of the Parish System of Evangelization Cells. On April 2, 2009, the Pontifical Council, signed by Mgr. Josef Clemens, Secretary of the Pontifical Council for the Laity, decrees: 1) The recognition of the International Service Organization of the Parish System of Evangelization, as a structure that aims to enhance, to develop and spread the parish cell system of evangelization; 2) The approval of the Statute of the aforementioned Body, duly authenticated by the Dicastery