Book excerpt: Nitrosamines are among the most toxic and carcinogenic chemical compounds known. Recently, N-nitrosodimethylamine (NDMA) has been identified as a possible water disinfection by-product and has been detected in water treatment plants in the US and Canada that use chloramines as a disinfectant. This report describes a research project on strategies for minimizing nitrosamine levels in drinking water. The research project focuses on the most prominent nitrosamine, NDMA, but also covers other aliphatic nitrosamines. Conclusions from the literature search and laboratory-scale experiments were the verified by full-scale tests in water utilities in the US, Australia, and Germany. The report lacks a subject index. Sacher is affiliated with DVGW-Technologiezentrum Wasser, Germany.