2nd edition. The purpose of this document is to provide a generic model that can be used for risk assessment of larviciding and mollusciciding; it aims to harmonize the risk assessment of such pesticides for public health use. The assessment considers both adults and children (all age groups) as well as people in the following specific categories: those handling products and preparing/loading the spray liquid in application equipment; those applying the spray or other formulations; and residents who may come into contact with treated waters during washing, bathing, fishing or any other activity, or use the treated waters.