Conference of Great Lakes and St. Lawrence Governors and Premiers.

The Great Lakes and St. Lawrence Governors and Premiers have identified the "least wanted" aquatic invasive species (AIS) that present an imminent threat to the Great Lakes-St. Lawrence River region. In 2013, the Governors and Premiers committed to take priority action on the transfer of these species to and within the region. Since then, the states and provinces have taken more than 50 separate actions to restrict these high-risk AIS, and the US federal government has similarly restricted four of the species.
See also: Aquatic Invasive Species for more resources.

IUCN. Species Survival Commission. Invasive Species Specialist Group.

The list of “100 of the World’s Worst Invasive Alien Species” is designed to enhance awareness of the fascinating complexity, and also the terrible consequences, of invasive alien species. Species were selected for the list according to two criteria: their serious impact on biological diversity and/or human activities, and their illustration of important issues surrounding biological invasion.

Code of Colorado Regulations.

New Jersey Invasive Species Strike Team; Friends of Hopewell Valley Open Space.

Includes New Jersey Invasive Species Strike Team Target & Watch Species along with all Widespread Invasive Species in New Jersey.
See also: Info Center for more resources.

Arizona Department of Transportation.

See also: Roadside Development for more resources

Maine Department of Environmental Protection.

Alabama Invasive Plant Council.

University of Alaska - Anchorage. Alaska Center for Conservation Science.

Provides list of invasive aquatic species known to or likely occur in Alaska's region.

University of Alaska - Anchorage. Alaska Center for Conservation Science.

USDA. Animal and Plant Health Inspection Service.

Based on years of experience and the latest science, APHIS developed a list of 59 pests and diseases that could pose a significant risk to U.S. food and agriculture resources. The list is not meant to be all-encompassing, but rather focus on the most impactful pests and diseases. USDA's goal remains to keep the U.S. free of these foreign pests and diseases and those posing a significant risk to U.S. food and agriculture resources. Section 12203 of the 2018 Farm Bill requires pest- and disease-planning activities that mirror the extensive planning efforts APHIS already performs. Specifically, it requires APHIS to develop a uniform list of pests and diseases that represent the gravest threat to the U.S. and to develop comprehensive response plans to ensure Federal and State governments are prepared to respond to them.
See related resource: Farm Bill

North Dakota Game and Fish Department.

USDA. Animal and Plant Health Inspection Service.

APHIS created the webpage to make it easier for its customers to find critical information on pests and diseases of concern. With this tool, members of the public will have the information they need to report pests and diseases and together we can protect America’s agriculture and natural resources. This page lists all pest and disease programs managed by APHISas part of its mission to protect American agriculture and natural resources. Users can search by type (plant, animal), keyword (avian, fruit fly, cotton), or by the specific pest or disease (coconut rhinoceros beetle, brucellosis). You can also scroll through the page, which lists the pests and diseases alphabetically and includes a corresponding image.

Nebraska Game and Parks Commission.

Wisconsin Department of Natural Resources.

Pennsylvania Fish and Boat Commission.

Scroll to view list of aquatic species banned in Pennsylvania.

Kansas Department of Wildlife, Parks, and Tourism.

City of Chicago. Department of Environment.

National Environmental Science Programme (Australia). Threatened Species Recovery Hub.

New research by the Threatened Species Recovery Hub has shown that invasive or pest species are a problem for 1,257 threatened species in Australia, or about four out of five species. The research which has been published in the scientific journal Pacific Conservation Biology also identified the top ten invasive species based on how many threatened species they impact. Lead researcher Stephen Kearney from the University of Queensland said many people may be surprised at which species top the list. “Rabbits, a plant root disease and feral pigs are the top three pest species impacting Australia’s threatened species,” Mr Kearney said.

Wildlife Forever.

Scroll down for 25 Most Harmful Nonindigenous Aquatic Species in the West

California Invasive Plant Council.

This interactive database contains information on the plants currently included in the Cal-IPC Invasive Plant Inventory. The Inventory categorizes plants as High, Moderate, or Limited, reflecting the level of each species' negative ecological impact in California. Includes options to search for species by region and by habitat type. The database provides a better view of information on each species and allows users to download the entire Inventory as a spreadsheet.