The purpose of this Decree is the permanent and efficient protection and improvement of the quality of surface waters in the interest of human health and environmental protection, and the prevention of pollution, in particular the prevention and reduction of the emission of hazardous substances, the promotion of modernization of waste water producing activities and establishments, and their detailed regulation. This Decree contains general rules on the protection of surface waters quality, on the obligations of the emitters, and on the emission of waste waters in Articles 4-9. The Decree establishes that different standards for different technologies, for territorial categories and for catchments areas shall be determined in separate rules. The norms on the determination of emission limits by the water management authority and special rules regarding common sewage disposal and treatment are set out also. Articles 16-18. deal with the authorization of waste water emission. Inspection and control of emissions, data reporting where self-inspection is prescribed, penalties and other sanctions are regulated as well in this Decree. Annex 1 lists substances which are dangerous for surface waters. Annex 2 determines the method of calculation of the waste water emission penalty and the amount of water protection penalty.