The most significant federal legal framework affecting the Long-toed Salamander in the United States is the Endangered Species Act of 1973. While the species as a whole (Ambystoma macrodactylum) does not carry a federal listing, the Santa Cruz Long-toed Salamander (Ambystoma macrodactylum croceum) has been federally listed as endangered since 1967, when it was included on the first list of endangered species compiled under the Endangered Species Preservation Act, the predecessor to the modern ESA. When the ESA was enacted in 1973, the Santa Cruz subspecies was carried forward under the new and more robust legal framework, where it has remained ever since.
The federal endangered listing of A. m. croceum triggers a suite of legal protections that apply to the subspecies and its habitat. Under Section 9 of the ESA, it is unlawful to take any individual of a listed species, where take is defined broadly to include harassing, harming, pursuing, hunting, shooting, wounding, killing, trapping, capturing, or collecting the animal, as well as attempting any of these actions. The definition of harm has been further interpreted through regulation and case law to include significant habitat modification or degradation that actually kills or injures listed wildlife by significantly impairing essential behavioral patterns such as breeding, feeding, or sheltering.
Section 7 of the ESA requires all federal agencies to consult with the U.S. Fish and Wildlife Service before undertaking, funding, or authorizing any action that may affect a listed species or its designated critical habitat. For the Santa Cruz Long-toed Salamander, this consultation requirement has been triggered by a wide range of federal actions in Santa Cruz and Monterey counties, including highway projects, water management decisions, and the issuance of permits for development on private lands. The consultation process has been a primary mechanism through which the federal government has influenced land use decisions affecting the subspecies' remaining habitat.
Critical habitat for the Santa Cruz Long-toed Salamander was designated by the U.S. Fish and Wildlife Service, identifying specific geographic areas that contain features essential to the subspecies' conservation. Activities within designated critical habitat that involve a federal nexus, whether through federal funding, permitting, or direct federal action, are subject to heightened scrutiny under Section 7. Private landowners whose properties fall within or adjacent to critical habitat may also be affected through Section 10 of the ESA, which provides a framework for incidental take permits that allow otherwise prohibited activities to proceed under the terms of an approved habitat conservation plan.