The Five-Lined Skink is not listed under the United States Endangered Species Act and is not subject to federal protections that would restrict its collection, possession, sale, or transport within or between U.S. states. The species' broad distribution and generally stable population status across the majority of its range have kept it below the threshold for federal listing consideration. The U.S. Fish and Wildlife Service, which administers the Endangered Species Act, has not received or acted upon any petition to list Plestiodon fasciatus, and the species does not appear on any federal candidate species list. This means that there is no blanket federal prohibition on taking Five-Lined Skinks from the wild, though state-level regulations — which vary enormously — may impose restrictions that are far more consequential for keepers and collectors in practice.
The Lacey Act, a federal law that prohibits the interstate transport of wildlife taken in violation of state, tribal, or foreign laws, is relevant to the Five-Lined Skink in an indirect but important way. While the Lacey Act does not itself regulate the Five-Lined Skink, it transforms any state-level violation involving the species into a potential federal offense if the animal or its parts are transported across state lines. A Five-Lined Skink collected illegally in a state that prohibits wild collection, for example, becomes the subject of a Lacey Act violation the moment it crosses a state boundary. This federal backstop gives significant enforcement teeth to state regulations that might otherwise be difficult to police and penalize.
In Canada, the Five-Lined Skink receives substantially greater legal protection than it does in the United States. The species is listed as Special Concern under the federal Species at Risk Act, a designation that triggers requirements for monitoring, management planning, and consideration during environmental assessments of projects that may affect the species or its habitat. The Canadian listing reflects the precarious status of the species at the northern edge of its range, where populations are small, geographically isolated, and restricted to specialized habitat types in southern Ontario. The Species at Risk Act listing does not by itself prohibit the collection or possession of the species, but it establishes a framework within which provincial regulations operate and provides a basis for federal involvement in conservation efforts on federal lands.
The Convention on International Trade in Endangered Species of Wild Fauna and Flora, known as CITES, does not list the Five-Lined Skink on any of its appendices. This means that international trade in the species is not subject to the permit requirements and trade controls that CITES imposes on listed species. Individuals seeking to import or export Five-Lined Skinks across international borders must still comply with the domestic wildlife trade laws of both the exporting and importing countries, as well as any applicable customs and agricultural inspection requirements, but the absence of a CITES listing removes one significant layer of regulatory complexity.