At the federal level in the United States, the Fence Lizard (Sceloporus undulatus) is not listed under the Endangered Species Act and does not receive species-specific federal protection. The species' broad distribution, large aggregate population, and absence of documented range-wide decline have kept it well below the threshold for federal listing consideration. However, this does not mean that federal law is irrelevant to Fence Lizard collection and trade. The Lacey Act, originally enacted in 1900 and significantly amended in subsequent decades, provides an overarching federal framework that criminalizes the interstate transport of wildlife taken in violation of state or foreign laws. Any Fence Lizard collected illegally under state regulations becomes contraband under the Lacey Act the moment it crosses a state line, transforming what might have been a minor state-level infraction into a federal offense.
The practical effect of the Lacey Act on the Fence Lizard trade is largely indirect. Because the species is not federally listed, there is no federal permit requirement for its collection or possession. Instead, the Lacey Act functions as an enforcement multiplier, giving federal wildlife agents the authority to investigate and prosecute cases involving animals that were taken in violation of the originating state's wildlife code. For individuals or commercial dealers who collect Fence Lizards in one state and sell them in another, compliance with the collection state's regulations is therefore not merely a matter of state law but a prerequisite for avoiding federal liability.
Federal lands within the Fence Lizard's range are subject to their own collection regulations, which are generally more restrictive than those governing private land. National parks, national wildlife refuges, and other units of the National Park Service and U.S. Fish and Wildlife Service system universally prohibit the collection of wildlife without specific scientific research permits. National forests managed by the U.S. Forest Service may allow limited personal collection of non-protected reptiles in some jurisdictions, but policies vary by individual forest and ranger district, and prospective collectors should consult the relevant forest supervisor's office before attempting any take.
Military installations, which encompass some of the largest and best-managed tracts of habitat within the Fence Lizard's range, present a distinct regulatory category. Bases such as Fort Bragg (now Fort Liberty) in North Carolina and Fort Benning (now Fort Moore) in Georgia support significant Fence Lizard populations on their extensively managed longleaf pine ecosystems. Access to these installations is controlled, and wildlife collection is governed by installation-specific regulations that typically require coordination with the base's natural resources office. Research conducted on military lands has contributed substantially to the understanding of Fence Lizard ecology, but casual collection is not permitted.