 In April 2003, the plan was updated, and Quebec signed onto it.The plan is being implemented by the Lake Champlain Basin Program and its partners at the state, provincial, federal, and local levels.Renowned as a model for interstate and international cooperation, its primary goals are to reduce phosphorus inputs to Lake Champlain, reduce toxic contamination, minimize the risks to humans from water-related health hazards, and control the introduction, spread, and impact of non-native nuisance species to preserve the integrity of the Lake Champlain ecosystem.