The Minister of Water and Sanitation has, in terms of section 13(4) of the NWA, published the classes of water resources and resource quality objectives for the following catchments –
- The Olifants Catchment (GNR 466 of 22 April 2016);
- The Olifants-Doorn Catchment (GNR 467 of 22 April 2016);
- The Upper Vaal (GNR 468 of 22 April 2016);
- The Middle Vaal (GNR 469 of 22 April 2016);
- The Lower Vaal (GNR 470 of 22 April 2016).