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It is the policy of the United States (U.S.) to prevent the introduction, establishment, and spread of invasive species invasive species
An invasive species is any plant or animal that has spread or been introduced into a new area where they are, or could, cause harm to the environment, economy, or human, animal, or plant health. Their unwelcome presence can destroy ecosystems and cost millions of dollars.

Learn more about invasive species and to eradicate and control established populations (Executive Order No.13751, 2016). Preventing the introduction, establishment, and spread of invasive species is the most cost-effective approach to protecting the ecological integrity and function of natural environments and to minimizing impacts to human health and safety, cultural resources, infrastructure, and the economy. The Aquatic Nuisance Species Task Force (ANSTF) leads development of management plans to respond to invasive species threats. In 2007, ANSTF published the first National Management and Control Plan for New Zealand Mudsnail, and this is an update of the plan.