These provisions implement Legislative Decree No. 152 of 1999, which sets forth at national level measures intended to protect waters against pollution. Article 1 concerns the exercise of relevant administrative functions, whereas article 2 provides for the simplification of the administrative proceedings mentioned in Annex A and regarding surface and underground waters. With a view to fully implementing Legislative Decree No. 152, the Region shall adopt regulations concerning the issues referred to in Annex B (such as safeguarding areas for surface and underground waters for human consumption, supplement to the code of good agricultural practice, sewerage). The discharges specified in article 4 are regarded as domestic waste water discharges. As a consequence, such discharges shall be permitted into surface waters or soil.