The present Ordinance lays down provisions relating to methods and technical specifications for the survey of environmental noise. The text consists of 13 articles divided into 6 Parts as follows: General provisions (1); Strategic noise cards, specific methods to assess noise (2); Planning of action (3); Agglomeration areas (4); Electronic data for the transmission of strategic noise cards, geo data, action plans and reports (5); Final provisions (6). Two Annexes are enclosed.