Guideline No. 3 on the management of potable water.

This Guideline lays down the methods and procedures for administering potable water supply. It consists of five Chapters: (I) General Provisions; (II) Installation of water measuring appliances; (III) Interventions in the water supply network; (IV) Protection of works and sanitary safety of potable water; (V) Interventions tracking and illegal use of water. The supply system is managed by the local government, while the supply and the treatment of used waters is carried out by management companies contracted through concessions.