Code of Colorado Regulations.
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.
California Department of Fish and Wildlife.
University of Maryland. Home and Garden Information Center.
Colorado Parks and Wildlife.
Explains state laws and regulations governing wildlife as pets, including what's legal and what's illegal to own, and why.
Mississippi Exotic Pest Plant Council.
California Department of Food and Agriculture.
New York Codes, Rules, and Regulations.
South Carolina Department of Natural Resources. Aquatic Nuisance Species Program.
University of California - Davis. California Invasive Species Advisory Committee.
See also: California Invasive Species List (2010; PDF | 521 KB); presented on Apr 21, 2010 by the California Invasive Species Advisory Committee (CISAC) to the Invasive Species council of California (ISCC)
Maryland Invasive Species Council.
New York Department of Environmental Conservation.
A regulation was adopted in 2014 that prohibits or regulates the possession, transport, importation, sale, purchase and introduction of select invasive species. The purpose of this regulation is to help control invasive species, a form of biological pollution, by reducing the introduction of new and spread of existing populations.
South Carolina Pest Plant Council.
New York State Agricultural Experiment Station.
Colorado Department of Agriculture. Conservation Services Division. Noxious Weed Program.
Mississippi Department of Agriculture and Commerce.
DOI. National Park Service.
West Virginia Code of State Rules.
Potomac Highlands Cooperative Weed and Pest Management Area (West Virginia).