Maximum allowable concentrations (MAC) of microorganism-producers, bacterial products and their components in the atmospheric air of inhabited places. Amendment No. 2 to GN 2.1.6.711-98
Maximum permissible concentrations (MPC) of chemicals in water of water objects of drinking and cultural-domestic water use. Amendment No. 2 to GN 2.1.5.689-98
Reference impact safe levels (RISL) of pollutants in air of working zone. Amendment No. 4 to hygienic normatives "Reference impact safe levels (RISL) of harmful substances in occupational air: GN 2.2.5.687-98"