According to my paper collection the SASS (South African Scoring System) method is the standard for the bioassessment of rivers in South Africa. The SASS was adapted to be used in other regions of southern Africa, including Zimbabwe Swaziland, Namibia (Namibian Scoring System NASS), Botswana (Okavango Assessment System OKAS), and Zambia (Zambia Invertebrate Scoring System ZISS). Recently, one paper and two master theses confirmed that the SASS approach does basically work also in other parts of the black continent, namely Ethiopia, Uganda and Burkina Faso. I would like to know if the SASS methodology is used in more countries than I listed above. By "used" I mean for example adopted (directly used), adapted (exclusion or inclusion of indicator taxa, change of rankings etc.), or used as a metric in a multimetric procedure.