The training of coordinators provided for in articles R. 4532-25 and R. 4532-26 may be provided by the Organisme professionnel de prévention dans le bâtiment et les travaux publics and by training bodies certified, on the basis of a reference system guaranteeing that they meet the requirements arising from the present code, by a body benefiting for this purpose from accreditation issued by a body mentioned in the first paragraph of article R. 4724-1.