Martin Guespereau is the new director of the Paris-Saclay Public Development Establishment (EPA) The EPA's scope of action extends over 27 municipalities in Essonne and Yvelines, with several strategic ZAC (concerted development zones) Gare de Guyancourt Saint-Quentin and Christ de Saclay are two new ZACs announced by Martin Guepereau on January 29 during his vows. The EPA is the armed arm of the State to carry out the operation of national interest (OIN)