This USDA Animal and Plant Health Inspection Service website provides info on weed risk assessments completed to date. They are provided for interested stakeholders and may be useful in setting local policies or for informing resource managers. 

This handbook is intended to advance the use of a “watershed approach” in the selection,  design, and siting of wetland and stream restoration and protection projects. Using a watershed  approach can help ensure that these projects also contribute to goals of improved water quality,  increased flood mitigation, improved quality and quantity of habitat, and increases in other  services and benefits that result from ecologically successful and sustainable restoration and  protection projects.